| RefNo | Title | Date |
| MM/9/18 | Letter from T H Huxley, Hodeslea, Staveley Road, Eastbourne, to Sir John Evans | 11 March 1892 |
| MM/9/17 | Letter from T H Huxley, Hodeslea, Staveley Road, Eastbourne, to Sir John Evans | 7 March 1892 |
| NLB/12/360 | Copy letter from Herbert Rix, to Dr O'Brien, 4 Upper Baker Street, N.W. | 6 February 1896 |
| MC/10/363 | Letter from H [Henry] Newell Martin, Christ's College, Cambridge, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 9 March 1876 |
| M/128 | Medal of the Royal College of Science | |
| IM/002349 | Huxley, Thomas Henry | nd |
| MS/769/44 | Letter from Thomas Henry Huxley, 4 Marlbrough Place, Abbey Road, to [Walter] White | 19 July 1881 [?] |
| IM/Maull/002350 | Huxley, Thomas Henry | nd |
| PP/4/31 | Paper, 'On the structure and functional significance of the human corpus callosum' by D J [David James] Hamilton | 1884 |
| IM/002346 | Huxley, Thomas Henry | nd |
| VF/18 | Portrait of Thomas Henry Huxley by Carlo Pellegrini | 28 January 1871 |
| IM/002351 | Huxley, Thomas Henry | 1877 |
| P/0186 | Portrait of Huxley, Thomas Henry | 1885 |
| MM/9/16 | Letter from T H Huxley, Hodeslea, Staveley Road, Eastbourne, to Sir John Evans | 28 December 1891 |
| MM/9/9 | Letter from T H Huxley, Prince of Wales Hotel, Harrogate, to Sir John Evans | 30 June 1886 |
| MM/6/75 | Letter from Thomas Henry Huxley, South Kensington, to Prof Thomas Bonney | 28 June 1880 |
| IM/005898 | Huxley, Thomas Henry | nd |
| MM/14/134 | Letter from 21 Fellows (including Richard Owen and T H Huxley) supporting an application by William Saville Kent for a grant towards the expenses of his proposed Marine Biological Expedition to the coast of Portugal | 1870 |
| IM/Maull/002347 | Huxley, Thomas Henry | nd |
| MM/9/14 | Letter from T H Huxley, Casalini, West Cliff, Bournemouth, to Sir John Evans | 8 March 1888 |
| MM/9/13 | Letter from T H Huxley, Cassalini, West Cliff, Bournemouth, to Sir John Evans | 24 February 1888 |
| MM/9/10 | Letter from T H Huxley, 4 Marlborough Place, Abbey Road, London, to Sir John Evans | 21 July 1886 |
| MM/9/8 | Letter from T H Huxley, "Cassalini", Bournemouth, to Sir John Evans | 17 March 1886 |
| MM/9/12 | Letter from T H Huxley, 4 Marlborough Place, Abbey Road, London, to Sir John Evans | 27 June 1887 |
| MS/769/45 | Letter from Thomas Henry Huxley to [Walter] White | 4 December 1881 [?] |
| MS/769/51 | Letter from Thomas Henry Huxley, The Royal Society, Burlington House, London, to [Walter] White | 30 July 1884 |
| MS/769/52 | Letter from Thomas Henry Huxley to [Walter White/] | no date |
| MS/769/46 | Letter from Thomas Henry Huxley, 4 Marlborough Place, Abbey Road, to [Walter] White | 20 February 1882 [?] |
| MS/769/50 | Letter from Thomas Henry Huxley, 4 Marlborough Place, Abbey Road, to [Walter] White | 21 July 1884 [?] |
| MS/769/47 | Letter from Thomas Henry Huxley, 4 Marlborough Place, Abbey Road, to [Walter] White | 24 February 1882 [?] |
| MS/769/49 | Letter from James L Shuter, 9 Steeles Road, Haverstock Hill, to Thomas Henry Huxley | 3 May 1884 |
| MS/769/43 | Letter from Thomas Henry Huxley, 4 Marlborough Place, to [Walter] White | 20 July 1877 |
| MS/743/1/179 | Letter from Thomas Henry Huxley, 4 Marlborough Place, Abbey Road, to [John Hall] Gladstone | 2 March [1864?] |
| MS/373/1/20 | Letter from Thomas Henry Huxley, Hodeslea, Eastbourne, to [Thomas Edward] Thorpe | 4 July 1891 |
| MC/11/201 | Letter from Richard Norris, Birckfield, Birmingham, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 20 April 1878 |
| IM/002352 | Huxley, Thomas Henry | nd |
| IM/002344 | Huxley, Thomas Henry | nd |
| IM/002345 | Huxley, Thomas Henry | nd |
| PT/71/1/12 | Plate, lateral aspect of pseudoembryo by [Edwin M Williams] | December 1862 |
| PT/71/1/22 | Plate, pentacrinoid larva before expansion of ventral disk by [Edwin M Williams] | [1862] |
| PT/71/1/19 | Plate, pentacrinoid larva after separation of oral valves by [Edwin M Williams] | [1862] |
| NLB/1/731 | Copy letter from Herbert Rix, to Professor Thomas Henry Huxley, Fellow of the Royal Society | 18 November 1887 |
| NLB/2/183 | Copy letter from Herbert Rix, to Professor Thomas Henry Huxley, Fellow of the Royal Society | 15 February 1888 |
| NLB/1/19 | Copy letter from Thomas Henry Huxley, to Sir Andrew Clarke | 17 November 1885 |
| NLB/1/18 | Copy letter from Thomas Henry Huxley, to Colonel Mailtand | 17 November 1885 |
| NLB/2/992 | Copy letter from Herbert Rix, to Professor Thomas Henry Huxley, Fellow of the Royal Society | 22 January 1889 |
| NLB/2/122 | Copy letter from Herbert Rix, to Professor Michael Foster [Royal Society] | 24 January 1888 |
| NLB/2/129 | Copy letter from Herbert Rix, to Professor Thomas Henry Huxley, Fellow of the Royal Society | 27 January 1888 |
| NLB/2/766 | Copy letter from Michael Foster, to Professor Thomas Henry Huxley, Fellow of the Royal Society | 1 November 1888 |
| NLB/2/918 | Copy letter from [Michael Foster], to Sir Henry Enfield Roscoe, MP, Fellow of the Royal Society | 22 December 1888 |
| NLB/3/199 | Copy letter from Herbert Rix, to Professor Thomas Henry Huxley, Fellow of the Royal Society | 10 April 1889 |
| NLB/3/921 | Copy letter from an unknown correspondent, to Messrs Harrison & Sons | 11 November 1889 |
| NLB/10/340 | Copy letter from Herbert Rix, to the Right Honourable Thomas Henry Huxley, Fellow of the Royal Society | 10 November 1894 |
| NLB/5/64 | Copy letter from an unknown correspondent, to Messrs Harrisons | 5 March 1891 |
| NLB/5/148 | Copy letter from Herbert Rix, to Professor Thomas Henry Huxley, Fellow of the Royal Society | 2 April 1891 |
| NLB/7/219 | Copy letter from Herbert Rix, to Professor Michael Foster | 22 December 1892 |
| NLB/10/354 | Copy letter from Herbert Rix, to the Right Honourable Thomas Henry Huxley, Fellow of the Royal Society | 12 November 1894 |
| NLB/10/261 | Copy letter from Lord Rayleigh [John Wiliam Strutt], to the Right Honourable Thomas Henry Huxley, Fellow of the Royal Society | 1 November 1894 |
| NLB/8/739 | Copy letter from Herbert Rix, to the Right Honorable Professor Huxley, Fellow of the Royal Society | 15 December 1893 |
| NLB/11/453 | Copy letter from Herbert Rix, to H Huxley, 2 Queensborough Terrace, W. | 3 June 1895 |
| NLB/10/1032 | Copy letter from Herbert Rix, to the Right Honourable Thomas Henry Huxley, Fellow of the Royal Society | 27 March 1895 |
| NLB/13/200 | Copy letter from Robert William Frederick Harrison, to Leonard Huxley | 1 July 1896 |
| NLB/11/447 | Copy letter from Herbert Rix, to Professor Thomas George Bonney, Fellow of the Royal Society | 3 July 1895 |
| NLB/11/851 | Copy letter from Michael Foster, to Dr O'Brien, Upper Baker Street | 18 October 1895 |
| NLB/11/426 | Copy letter from an unknown correspondent, to Messrs Harrison & Sons | 1 July 1895 |
| NLB/11/556 | Copy letter from Herbert Rix, to Professor Michael Foster | 23 July 1895 |
| NLB/13/161 | Copy letter from Robert William Frederick Harrison, to The Cambridge Engraving Company | 23 June 1896 |
| NLB/13/126 | Copy letter from Robert William Frederick Harrison, to The Cambridge Engraving Company | 19 June 1896 |
| NLB/13/185 | Copy letter from Robert William Frederick Harrison, to The Cambridge Engraving Company | 27 June 1896 |
| NLB/13/248 | Copy letter from Robert William Frederick Harrison, to The Cambridge Engraving Company | 10 July 1896 |
| NLB/12/399 | Copy letter from Herbert Rix, to Mrs Huxley, Hodeslea, Staveley Road, Eastbourne | 13 February 1896 |
| NLB/12/450 | Copy letter from Herbert Rix, to Professor Michael Foster, [Royal Society] | 19 February 1896 |
| NLB/14/88 | Copy letter from Robert William Frederick Harrison, to Signor Professor Dr Gennaro Scognamiglio, Vico Storto Purgatorio, 9, Naples, Italy | 24 December 1896 |
| NLB/6/887 | Copy letter from Theodore E James, to Professor Thomas George Bond Howes, Royal College of Science | 2 August 1892 |
| NLB/14/411 | Copy letter from Robert William Frederick Harrison, to Professor Edwin Ray Lankester, Fellow of the Royal Society | 6 March 1897 |
| PT/71/1/21 | Plate, arrangement of non-extensile tentacles of pentacrinoid larva by [Edwin M Williams] | [1862] |
| NLB/17/630 | Copy letter from Robert William Frederick Harrison, to C E Fagan | 28 November 1898 |
| NLB/17/445 | Copy letter from Robert William Frederick Harrison, to L Huxley, The Charterhouse, Godalming | 2 November 1898 |
| NLB/18/279 | Copy letter from [Robert William Frederick Harrison], to [Mr L Huxley] | 17 February 1899 |
| MC/11/450 | Letter from J D [Joseph David] Everett, Malone Road, Belfast, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 9 December 1879 |
| MC/9/571 | Letter from W A Ploss [?], Shooter's Hill, Kent, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society], Burlington House | 25 May 1873 |
| MC/10/178 | Letter from J Y [John Young] Buchanan, HMS 'Challenger', Hong Kong, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 16 December 1874 |
| MC/10/197 | Letter from Alfred Newton, 10 Beaufort Gardens, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 19 January 1875 |
| RR/4/56 | Referee's report by Thomas Henry Huxley, on a paper 'On the relations of the vomer, ethmoid, and intermaxillary bones' by John Cleland | 17 May 1861 |
| RR/2/106 | Referee's report by Thomas Henry Huxley, on a paper 'On the functions and structure of the rostellum of Listera ovata' by Joseph Dalton Hooker | October 1854 |
| RR/2/113 | Referee's report by Edward Forbes, on a paper 'On the morphology of the cephalous mollusca, as illustrated by the anatomy of certain heteropoda and pteropoda collected during the voyage of H. M. S. "Rattlesnake" in 1846-50' by Thomas Henry Huxley | 27 July 1852 |
| RR/2/85 | Referee's report by Thomas Henry Huxley, on a paper 'On the anatomy of Doris' by Albany Hancock and Dennis Embleton | 7 April 1854 |
| RR/4/75 | Referee's report by Thomas Henry Huxley, on a paper 'Researches into the nature of the involuntary muscular tissue of the urinary bladder' by George Viner Ellis | 14 March 1859 |
| RR/4/142 | Referee's report by Thomas Henry Huxley, on a paper 'On the distorted skulls found at Wroxeter (Salop), with a mechanico-chemical explanation of the distortion' by Henry Johnson | 1 April 1862 |
| RR/4/157 | Referee's report by Thomas Henry Huxley, on a paper 'Notes on the generative organs, and on the formation of the egg in the annulosa' by John Lubbock | 17 May 1861 |
| RR/3/228 | Referee's report by Thomas Henry Huxley, on a paper 'On the structure and development of the cysticercus cellulosœ as found in the muscles of the pig' by George Rainey | 18 July 1856 |
| MC/12/154 | Letter from John D [Denis] Macdonald, [?] Netley, Southampton, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 12 March 1881 |
| RR/3/183 | Referee's report by Thomas Henry Huxley, on a paper 'An account of the two methods of reproduction in Daphnia, and of the structure of the Ephippium' by John Lubbock | 25 March 1857 |
| RR/4/97 | Letter from Thomas Henry Huxley, on a paper 'On the posterior lobes of the cerebrum of the quadrumana' by William Henry Flower | 4 March 1862 |
| PT/64/14/16 | Plate, 'Intermaxillaries of the giraffe' by J [John] Cleland | [1861] |
| PT/71/1/7 | Plate, earlier stages of yolk segmentation by [Edwin M Williams] | December 1862 |
| PT/71/1/11 | Plate, ventral aspect of pseudoembryo by [Edwin M Williams] | December 1862 |
| RR/4/218 | Referee's report by Thomas Henry Huxley, on a paper 'On the aquiferous and oviducal system in the Lamellibranchiate mollusks' by George Rolleston and C Robertson | 24 June 1862 |
| RR/3/267 | Referee's report by John Phillips, on a paper 'On the structure and motion of glaciers' by John Tyndall and Thomas Henry Huxley | 16 March 1857 |
| PT/71/1/18 | Plate, portion of oral disc of pentacrinoid larva by [Edwin M Williams] | [1862] |
| RR/3/16 | Referee's report by Thomas Henry Huxley, on a paper 'On the development of the decapod crustacea' by Spence Bates | 3 August 1857 |
| RR/7/302 | Referee's report by Thomas Henry Huxley, on a paper 'The localization of function in the brain' by David Ferrier | 1874 |
| RR/6/200 | Referee's report by Thomas Henry Huxley, on a paper 'On the osteology of the solitaire or Didine Bird of the Island of Rodriguez, Pezophaps solitaria ( Gmel.)' by Alfred Newton and Edward Newton | 7 July 1868 |
| RR/7/91 | Referee's report by Thomas Henry Huxley, on a paper 'On the structure and affinities of guynia annulata, dunc., with remarks upon the persistence of palaeozoic types of madreporaria' by Peter Martin Duncan | 29 July 1871 |
| RR/6/300 | Referee's report by Thomas Henry Huxley, on a paper 'On the geographical and geological relations of the fauna and flora of Palestine' by Henry Baker Tristram | 27 May 1868 |
| RR/9/30 | Referee's report by Thomas Henry Huxley, on a paper 'On the development of the ossicula auditus in the higher mammalia' by Alex Fraser | 10 June 1882 |
| RR/7/454 | Referee's report by Thomas Henry Huxley, on a paper 'On the structure of a species of millepora occurring at Tahiti, Society Islands' by Henry Nottidge Moseley | 13 April 1876 |
| RR/7/446 | Referee's report by Thomas Henry Huxley, on a paper 'On the comparative anatomy of the auditory ossicles of the mammalia' by Alban G H Doran | 20 October 1876 |
| RR/8/136 | Letter from Thomas Henry Huxley, to George Gabriel Stokes, regarding a paper 'Contributions to the anatomy of the central nervous system vertebrate animals' by Alfred Sanders | 18 July 1878 |
| RR/7/496 | Referee's report by Thomas Henry Huxley, on a paper 'The optical deportment of the atmosphere in relation to the phenomena of putrefaction and infection' by John Tyndall | 10 April 1876 |
| RR/9/52 | Referee's report by Thomas Henry Huxley, on a paper 'An attempt at a complete osteology of hypsilophodon foxii; a British Wealden dinosaur' by John Whitaker Hulke | 2 May 1882 |
| RR/9/113 | Referee's report by Thomas Henry Huxley, on a paper 'Contributions to the anatomy of the hirudinea' by Alfred Gibbs Bourne | 28 July 1883 |
| RR/9/353 | Referee's report by Thomas Henry Huxley, on a paper 'Remarks on the cloaca and on the copulatory organs of the amniota' by Hans Friedrich Gadow | 10 June 1886 |
| RR/8/323 | Letter from Thomas Henry Huxley, to William Spottiswoode, regarding a paper 'On toroidal functions' by William Mitchinson Hicks | 2 October 1881 |
| RR/8/354 | Referee's report by Thomas Henry Huxley, on a paper 'On the female organs and placentation of the raccoon (Procyon lotor)' by Morrison Watson | 23 March 1881 |
| AP/60/4/4 | Unpublished letter, regarding 'Experimental researches on the temperature of the head' from H [Henry] Charlton Bastian to T H [Thomas Henry] Huxley | 11 April 1878 |
| RR/9/365 | Referee's report by Thomas Henry Huxley, on a paper 'Supplementary note on Polacanthus Foxii, describing the dorsal and some parts of the endoskeleton imperfectly known in 1881' by John Whitaker Hulke | 3 July 1887 |
| RR/12/109 | Referee's report by Thomas Henry Huxley, on a paper 'On the evolution of the vertebral column of fishes' by Hans Friedrich Gadow and E C Abbott | 18 July 1894 |
| RR/12/7 | Referee's report by Thomas Henry Huxley, on a paper 'On some new reptiles from the Elgin sandstones' by Edwin Tulley Newton | 13 February 1893 |
| MS/427/5 | Copy letter from [Thomas Henry] Huxley, Secretary of the Royal Society; to the Secretary of the Treasury | 7 November 1879 |
| RR/6/215 | Referee's report by Thomas Henry Huxley, on a paper 'On the structure and development of the skull of the common fowl (Gallus domesticus)' by William Kitchen Parker | 28 April 1869 |
| RR/10/84 | Referee's report by Thomas Henry Huxley, on the Croonian Lecture 'Researches on the structure, organization, and classification of the fossil Reptilia.—II. On Pareiasaurus bombidens (Owen), and the significance of its affinities to Amphibians, Reptiles, and Mammals' by Harry Govier Seeley | 24 May 1887 |
| RR/4/132 | Referee's report by Thomas Henry Huxley, on a paper 'On the homologies of the eye and of its parts in the Invertebrata' by John Braxton Hicks | 7 May 1861 |
| RR/2/7 | Referee's report by Thomas Henry Huxley, on a paper 'On the anatomy and physiology of Cordylophora, a contribution to our knowledge of the tubularian zoophytes' by George James Allman | 17 July 1853 |
| RR/4/35 | Referee's report by Thomas Henry Huxley, on a paper 'Researches on foraminifera - fourth and concluding series' by William Benjamin Carpenter | 1860 |
| NLB/62/712 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to W. Lewis Reid Esquire; 51 Loftus Road, Shepherd's Bush, W.12. | 10 April 1922 |
| NLB/62/462 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to the Assistant Secretary of the British Association | 17 February 1922 |
| RR/7/192 | Referee's report by Thomas Henry Huxley, on a paper 'On the structure and development of the skull in the salmon' by William Kitchen Parker | 31 October 1872 |
| MC/14/61 | Letter from James Croll, Strathaven, to [Thomas Henry] Huxley, President of the Royal Society | 4 July 1885 |
| MC/10/223 | Letter from Geo [George] Howes, 5 Larkhall Lane, Clapham, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society], South Kensington Museum | 17 February 1875 |
| PT/71/1/10 | Plate, dorsal view of pseudoembryo by [Edwin M Williams] | December 1862 |
| MC/13/116 | Letter from T [Thomas] Wharton Jones, Ventnor, Isle of Wight, to [Thomas Henry Huxley], President of the Royal Society and to the Council | 9 December 1884 |
| MS/427/286 | Copy letter from [Michael] Foster, Secretary of the Royal Society; to the Principal Librarian, British Museum | 5 July 1883 |
| MS/427/360 | Copy letter from [Michael] Foster, Secretary of the Royal Society; to the Right Hon. Hugh L. Childers, Chancellor of the Exchequer | [3] May 1884 |
| MS/426/475 | Copy letter from C R [Charles Richard] Weld, the Assistant Secretary of the Royal Society; to Sir Herschel | 8 November 1852 |
| MS/427/430 | Copy letter from [Thomas Henry] Huxley, President of the Royal Society; to the Astronomer Royal [William Henry Mahoney Christie] | 23 May 1885 |
| MS/427/157 | Copy letter from Walter White, Assistant Secretary of the Royal Society; to Sir [Ralph Robert Wheeler] Lingen, Treasury | 24 January 1882 |
| MC/10/205 | Letter from W H [William Henry] Flower, Royal College of Surgeons of England, Lincoln's Inn Fields, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 25 January 1875 |
| MS/426/540 | Note of a letter from [the Secretaries of] the Royal Society; to various individuals | 8 May 1855 |
| MS/769/42 | Letter from Thomas Henry Huxley, The Royal Society, Burlington House, London, to [Walter] White | 15 October 1873 [?] |
| EC/1851/10 | Huxley, Thomas Henry: certificate of election to the Royal Society | |
| MM/9/15 | Letter from T H Huxley, 3 Jevington Gardens, Eastbourne, to Sir John Evans | 24 February 1890 |
| MM/9/11 | Letter from T H Huxley, 4 Marlborough Place, Abbey Road, London, to Sir John Evans | 18 June 1887 |
| MM/16/54 | Letter from T H Huxley, Marlborough Place, to George Gabriel Stokes | 14 July 1881 |
| DM/7/84 | Letter from North and South West Junction Railway Company to T H Huxley, Secretary, Royal Society | 11 November 1879 |
| MS/843/4 | Letter from Thomas Henry Huxley, 14 Waverley Place, St John's Wood, to William Sharpey | 16 June 1857 |
| NLB/1/498 | Copy letter from Michael Foster, to Willliam Thomas Blanford, Professor Thomas George Bonney, Dr Geikie, Professor Thomas Henry Huxley, and Professor John Wesley Judd | 8 July 1887 |
| NLB/3/254 | Copy letter from Herbert Rix, to Professor Michael Foster | 24 April 1889 |
| NLB/5/138 | Copy letter from Herbert Rix, to Sir Joseph Dalton Hooker, [Fellow of the Royal Society] | 2 April 1891 |
| NLB/8/664 | Copy letter from Herbert Rix, to the Right Honorable Professor Thomas Henry Huxley, Fellow of the Royal Society | 5 December 1893 |
| NLB/11/459 | Copy letter from Michael Foster, to Mrs Thomas Henry Huxley | 5 July 1895 |
| PT/71/1/4 | Plate, ovary and ova in various stages of development by [Edwin M Williams] | December 1862 |
| PT/71/1/5 | Plate, vesicles of evolution and spermatozoa by [Edwin M Williams] | December 1862 |
| RR/6/158 | Referee's report by Thomas Henry Huxley, on a paper 'On the phenomena observed to attend the propulsion of lymph from one of the lymphatic hearts into a vein in the frog' by Thomas Wharton Jones | nd [1868] |
| RR/8/145 | Letter from William Turner, to Thomas Henry Huxley, regarding a paper 'On the placentation of the Apes, with a comparison of the structure of their placenta with that of the human female' by William Turner | 27 March 1878 |
| RR/10/67 | Referee's report by Thomas Henry Huxley, on a paper 'On the morphology of birds' by William Kitchen Parker | 15 March 1887 |
| PT/71/1/17 | Plate, pentacrinoid larva after separation of oral valves by [Edwin M Williams] | [1862] |
| IM/002348 | Huxley, Thomas Henry | 19 August 1889 |
| IM/002353 | Huxley, Thomas Henry | 1999 |
| MC/13/98 | Letter from R R W [Ralph Robert Wheeler] Lingen, Treasury Chambers, to [Thomas Henry] Huxley, President of the Royal Society | 10 October 1884 |
| RR/6/18 | Referee's report by Thomas Henry Huxley, on a paper 'On the anatomy and physiology of the nematoids, parasitic and free; with observations on their zoological position and affinities to the echinoderms' by Henry Charlton Bastian | 13 April 1866 |
| RR/8/285 | Referee's report by Thomas Henry Huxley, on a paper 'On the results of recent explorations of erect trees containing animal remains in the coal-formation of Nova Scotia' by John William Dawson | 13 October 1881 |
| RR/10/81 | Referee's report by Thomas Henry Huxley, on a paper 'Researches on the structure, organization, and classification of the fossil reptilia. - I. On Protoronsaurus speneri (von Meyer)' by Harry Govier Seeley | 11 March 1887 |
| RR/10/86 | Referee's report by Thomas Henry Huxley, on a paper 'Researches on the structure, organization, and classification of the fossil reptilia.—III. On parts of the skeleton of a mammal from Triassic rocks of Klipfontein, Fraserberg, South Africa (Theriodesmus phylarchus, Seeley), illustrating the reptilian inheritance in the mammalian hand' by Harry Govier Seeley | 11 November 1887 |
| RR/8/322 | Letter from William Spottiswoode, to Thomas Henry Huxley, regarding a paper 'On toroidal functions' by William Mitchinson Hicks | 23 July 1881 |
| P/0076 | Portrait of Huxley, Thomas Henry | c 1880 |
| PT/58/2/4 | Plate, boxwood and brass apparatus used for testing effect of pressure on form of ice by unknown artist | [1857] |
| PT/64/14/13 | Plate, vomer and ethmoid of lamb by J [John] Cleland | [1861] |
| PT/42/11i | Paper, 'Observations upon appendicularia and doliolum - two genera of the tunicata' by Thos [Thomas Henry] Huxley | [1851] |
| RR/2/112 | Referee's report by Edward Forbes and Thomas Bell, on a paper 'Observations upon the anatomy and physiology of Salpa and Pyrosoma' by Thomas Henry Huxley | 22 August 1851 |
| PT/36/6 | Paper, 'On the anatomy and the affinities of the family of the medusæ' by Thomas Henry Huxley | [1849] |
| MC/12/148 | Letter from T H [Thomas Henry] Huxley, [Secretary of the Royal Society], South Kensington, to W [William] Spottiswoode, President of the Royal Society | 15 February 1881 |
| RR/3/39 | Referee's report by Thomas Henry Huxley, on a paper 'Researches on the foraminifera' by William Benjamin Carpenter | 9 July 1856 |
| MC/11/203 | Copy letter from [Thomas Henry Huxley], [Secretary of the Royal Society], 4 Marlborough Place, to [Richard] Norris | 25 April 1878 |
| PT/72/5/5 | Plate, 'North-Atlantic foraminifera' by G West | [1864] |
| RR/3/43 | Referee's report by Thomas Henry Huxley, on a paper 'Researches on the foraminifera' by William Benjamin Carpenter | 24 September 1858 |
| RR/2/114 | Referee's report by Thomas Bell, on a paper 'On the morphology of the cephalous mollusca, as illustrated by the anatomy of certain heteropoda and pteropoda collected during the voyage of H. M. S. "Rattlesnake" in 1846-50' by Thomas Henry Huxley | August 1852 |
| RR/2/140 | Referee's report by Thomas Henry Huxley, on a paper 'Further observations on the anatomy of Macgillivrayia, Cheletropis, and allied genera of pelagic gasteropoda' by John Denis MacDonald | nd [1855] |
| RR/3/37 | Referee's report by Thomas Henry Huxley, on a paper 'Researches on the foraminifera' by William Benjamin Carpenter | 21 July 1855 |
| PT/58/2/8 | Plate, trough used for testing ice lamination produced from mutual thrust of confluent glaciers by unknown artist | [1857] |
| PT/58/2/6 | Plate, ice separated perpendicularly to lamination of glacier by unknown artist | [1857] |
| PT/58/2 | Paper, 'On the structure and motion of glaciers' by John Tyndall and T H [Thomas Henry] Huxley | January 1857 |
| PT/58/2/5 | Plate, boxwood used for testing the viscous flow of glaciers by unknown artist | [1857] |
| PT/58/2/7 | Plate, wooden trough representing principal accidents of glacial valley by unknown artist | [1857] |
| PT/58/2/3 | Plate, seasoned boxwood used for testing effect of pressure on form of ice by unknown artist | [1857] |
| PT/58/2/1 | Manuscript, 'On the structure and motion of glaciers' by John Tyndall and T H [Thomas Henry] Huxley | January 1857 |
| PT/64/14/14 | Plate, 'Intermaxillaries of the sheep' by J [John] Cleland | [1861] |
| PT/58/2/2 | Plate, specimen of ice near Heisseplatte on Lower Grindelwald glacier by unknown artist | [1857] |
| PT/58/2/12 | Plate, mud in trough representing a narrow gorge by unknown artist | [1857] |
| PT/58/2/11 | Plate, trough representing a narrow gorge by unknown artist | [1857] |
| PT/58/2/9 | Plate, trough representing glacier and upper basin of the Rhône by unknown artist | [1857] |
| PT/58/2/10 | Plate, disposition of trough representing glacier and upper basin of the Rhône by unknown artist | [1857] |
| PT/64/14/8 | Plate, 'Bones from the cat' by J [John] Cleland | [1861] |
| PT/64/14/7 | Plate, posterior extremity of vomer by J [John] Cleland | [1861] |
| PT/64/14/26 | Plate, 'Section of skull of Delphinus orca' by J [John] Cleland | [1861] |
| PT/64/14/25 | Plate, 'Part of the skull of a dugong' by J [John] Cleland | [1861] |
| PT/64/14/28 | Plate, 'Diagram of the two most anterior segments of the mammalian skull' by J [John] Cleland | [1861] |
| PT/64/14/22 | Plate, 'Part of the skull of cœlogenys' by J [John] Cleland | [1861] |
| PT/64/14/18 | Plate, 'Section of the fore part of the skull of a horse' by J [John] Cleland | [1861] |
| PT/64/14/27 | Plate, 'Section of skull of Delphinus globiceps from above' by J [John] Cleland | [1861] |
| PT/64/14/4 | Plate, 'Bones from specimen referred to in the text as no. 3' by J [John] Cleland | [1861] |
| PT/64/14/24 | Plate, 'Part of the skull of a kangaroo' by J [John] Cleland | [1861] |
| PT/64/14/23 | Plate, articulations of vomer in rabbit by J [John] Cleland | [1861] |
| PT/64/14/15 | Plate, 'Intermaxillaries of the alpaca' by J [John] Cleland | [1861] |
| PT/64/14/9 | Plate, 'Vomer and ethmoid of the fox' by J [John] Cleland | [1861] |
| PT/64/14/10 | Plate, 'Intermaxillaries of Ursus maritimus' by J [John] Cleland | [1861] |
| PT/64/14/1 | Manuscript, 'On the relations of the vomer, ethmoid, and intermaxillary bones' by John Cleland | [1861] |
| PT/64/14/12 | Plate, 'Part of a hedgehog's skull' by J [John] Cleland | [1861] |
| PT/64/14/6 | Plate, diagram of vomer, ethmoid, and sphenoidal spongy bones by J [John] Cleland | [1861] |
| RR/4/217 | Referee's report by Thomas Henry Huxley, on a paper 'On the aquiferous and oviducal system in the Lamellibranchiate mollusks' by George Rolleston and C Robertson | 22 June 1859 |
| PT/64/14/3 | Plate, 'Bones from specimen referred to in the text as no. 2' by J [John] Cleland | [1861] |
| PT/64/14/11 | Plate, 'Vomer and ethmoid of Phoca vitulina' by J [John] Cleland | [1861] |
| PT/64/14/32 | Plate, 'Diagram of the two most anterior segments of a fish's skull' by J [John] Cleland | [1861] |
| PT/64/14/2 | Plate, 'Bones from specimen referred to in the text as no. 1' by J [John] Cleland | [1861] |
| PT/64/14/17 | Plate, 'Part of the skull of a horse' by J [John] Cleland | [1861] |
| PT/64/14/21 | Plate, 'Anterior nares of the tapir' by J [John] Cleland | [1861] |
| PT/64/14/5 | Plate, vomers by J [John] Cleland | [1861] |
| PT/64/14/19 | Plate, 'Vomer etc. from the skull of a sucking pig' by J [John] Cleland | [1861] |
| PT/64/14/20 | Plate, 'Vomer etc. of a young elephant' by J [John] Cleland | [1861] |
| PT/64/14/29 | Plate, 'Vomer and palatals of a duck, viewed from above' by J [John] Cleland | [1861] |
| PT/64/14/31 | Plate, intermaxillary and vomer of python and nasal and vomer of Malapterurus by J [John] Cleland | [1861] |
| PT/64/14/30 | Plate, 'Section of the skull of a cod' by J [John] Cleland | [1861] |
| PT/71/1/2 | Plate, drafts of Comatula rosacea anatomy by [Charles Thomas Wyville Thomson?] | [1862] |
| PT/71/1/3 | Plate, uncompressed pseudoembryo by [Edwin M Williams] | [1862] |
| RR/5/123 | Referee's report by Hugh Falconer, on a paper 'On the osteology of the genus glyptodon' by Thomas Henry Huxley | 2 May 1864 |
| PT/71/1/16 | Plate, pseudoembryo losing organs of assimilation and locomotion by [Edwin M Williams] | December 1862 |
| PT/71/1/1 | Manuscript, 'On the embryogeny of Antedon rosaceus (Lincks) (Comatula rosacea of Lamarck)' by Professor [Charles Thomas] Wyville Thomson | [1862] |
| PT/42/11 | Paper, 'Observations upon the anatomy and physiology of salpa and pyrosoma' by Thomas Henry Huxley | [1851] |
| PT/71/1/13 | Plate, dorsal aspect of pseudoembryo by [Edwin M Williams] | December 1862 |
| PT/71/1/8 | Plate, development of pseudoembryo by [Edwin M Williams] | December 1862 |
| PT/71/1/9 | Plate, dorsal and ventral aspects of pseudoembryo by [Edwin M Williams] | December 1862 |
| PT/71/1/6 | Plate, egg after impregnation and yolk segmentation by [Edwin M Williams] | December 1862 |
| PT/71/1/14 | Plate, pseudoembryo losing organs of assimilation and locomotion by [Edwin M Williams] | December 1862 |
| PT/72/5/1 | Manuscript, 'On some foraminifera from the North Atlantic and Arctic Oceans, including Davis's Straits and Baffin's Bay' by W [William] Kitchen Parker and T [Thomas] Rupert Jones | [1864] |
| PT/71/1/20 | Plate, enlarged end of extending arm of pentacrinoid larva by [Edwin M Williams] | [1862] |
| PT/72/5/3 | Plate, 'Arctic foraminifera' by G West | [1864] |
| PT/72/5/7 | Plate, 'Arctic foraminifera' by G West | [1864] |
| PT/72/5/8 | Plate, 'Arctic foraminifera' by G West | [1864] |
| PT/71/1/15 | Plate, pseudoembryo losing organs of assimilation and locomotion by [Edwin M Williams] | December 1862 |
| PT/72/5/10 | Plate, 'Foraminifera of the North Atlantic' by G West | [1864] |
| PP/1/18 | Paper, 'On the Trichophyton tonsurans (the fungus of ringworm)' by George Thin | 1881 |
| PT/72/5/9 | Plate, 'Arctic foraminifera' by G West | [1864] |
| RR/6/157 | Referee's report by Thomas Henry Huxley, on a paper 'The caudal heart of the eel a lymphatic heart.—Effect of the force with which the lymph-stream is propelled therefrom on the flow of the blood in the vein into which the heart opens.— Explanation of the appearance of blood propelled in successive drops, as if from the heart, along the caudal vein.—Influence which the force of the lymph-stream from the heart exerts in accelerating and promoting the flow of blood in the caudal vein' by Thomas Wharton Jones | 20 March 1868 |
| AP/57/2 | Unpublished paper, 'Preliminary observations on the locomotion system of Medusae' by G J [George John] Romanes | 1875 |
| RR/8/249 | Letter from Thomas Henry Huxley, to George Gabriel Stokes, regarding a paper [attributed] 'On the structure and development of the skull in sturgeons (Acipenser ruthenus and A. sturio)' by William Kitchen Parker | 30 July 1880 |
| MC/8/346 | Letter from members of the Athenaeum Club to the Secretary of the Royal Society | 8 April 1869 |
| MC/10/134 | Letter from J [John] Winter Jones, British Museum, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 25 June 1874 |
| MC/10/289 | Letter from T E [Thomas Edward] Thorpe, Yorkshire College of Science, Leeds, to Professor T H [Thomas Henry] Huxley, [Secretary of the Royal Society] | 15 October 1875 |
| MC/11/48 | Letter from Lyon Playfair to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 17 April 1877 |
| MC/9/492 | Letter from James Jago, Lemon House, Truro, Cornwall, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 12 February 1873 |
| MC/9/484 | Letter from H [Henry] Charlton Bastian, 20 Queen Anne Street, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 31 January 1873 |
| MC/9/545 | Draft letter from T H [Thomas Henry] Huxley, [Secretary of the Royal Society], Burlington House, London, to Dr [Henry Charlton] Bastian | 5 May 1873 |
| MC/9/543 | Letter from H [Henry] Charlton Bastian, 20 Queen Anne Street, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 2 May 1873 |
| MC/9/551 | Letter from H [Henry] Charlton Bastian, 81 Avenue Road, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 11 May 1873 |
| MC/9/522 | Letter from B W [Benjamin Ward] Richardson, 12 Hinde Street, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 21 March 1873 |
| MC/9/540 | Letter from David Ferrier, 23 Somerset Street, Portman Square, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 29 April 1873 |
| MC/9/555 | Letter from H [Henry] Charlton Bastian, 20 Queen Anne Street, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 18 May 1873 |
| MC/9/563 | Letter from H W [Henry Walter] Bates, Assistant Secretary of the Royal Geographical Society, 1 Savile Row, Burlington Gardens, to Professor T H [Thomas Henry] Huxley, Secretary of the Royal Society | 24 May 1873 |
| MC/9/569 | Letter from W A Ploss [?], Shooter's Hill, Kent, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society], Burlington House | 25 May 1873 |
| MC/9/587 | Draft letter from T H [Thomas Henry] Huxley, [Secretary of the Royal Society], Burlington House, London, to Dr [Henry Charlton] Bastian | 19 June 1873 |
| MC/9/557 | Letter from H [Henry] Charlton Bastian, 20 Queen Anne Street, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 19 May 1873 |
| MC/9/553 | Letter from H [Henry] Charlton Bastian, 20 Queen Anne Street, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 14 May 1873 |
| MC/9 | Volume 9 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1870-June 1873 |
| MC/10/8 | Letter from J F [John Francis] Tennant, Lieutenant-Colonel Royal Engineers, Roorkee, North West Provinces, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 23 September 1873 |
| MC/10/75 | Letter from David Ferrier, 23 Somerset Street, Portman Square, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 20 February 1874 |
| MC/10/94 | Letter from J B [John Burdon] Sanderson, 49 Queen Anne Street, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 26 March 1874 |
| MC/10/97 | Letter from David Ferrier, 23 Somerset Street, Portman Square, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 20 April 1874 |
| MC/10/91 | Letter from J [Joseph] Prestwich, Shoreham near Sevenoaks, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 18 March 1874 |
| MC/10/121 | Letter from Chas W [Charles Wilson] Vincent, Royal Institution, Albemarle Street, to Professor T H [Thomas Henry] Huxley, [Secretary of the Royal Society] | 9 June 1874 |
| MC/10/128 | Letter from J B [John Burdon] Sanderson, University College London, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 18 June 1874 |
| MC/10/123 | Letter from W S Dallas, Assistant Secretary of the Geological Society, Geological Society, Somerset House, to Professor T H [Thomas Henry] Huxley, [Secretary of the Royal Society] | 12 June 1874 |
| MC/10/176 | Letter from T [Thomas] Rupert Jones, 5 College Terrace, Yorktown, Surrey, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 10 December 1874 |
| MC/10/167 | Letter from A H Saurd [?], 10 Harley Street, Cavendish Square, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 6 November 1874 |
| MC/10/183 | Letter from J L M Thudichum, 3 Pembroke Road, Kensington, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 25 December 1874 |
| MC/10/199 | Letter from P L [Philip Lutley] Sclater, Zoological Society of London, 11 Hanover Square, London, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 20 January 1875 |
| MC/10/204 | Letter from Geo [George] Busk, 32 Harley Street, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 25 January 1875 |
| MC/10/202 | Letter from Alfred Newton, 10 Beaufort Gardens, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 24 January 1875 |
| MC/10/169 | Letter from Nichs [Nicholas] Whitley, Honorary Secretary of the Royal Institution of Cornwall, Penarth, Truro, to [George Gabriel Stokes and Thomas Henry Huxley], Secretaries of the Royal Society | 21 November 1874 |
| MC/10/180 | Letter from Thomas Fairbairn, Bramridge House, Bishopstoke, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 17 December 1874 |
| MC/10/224 | Letter from Lewis Jackson, Royal Institution of Great Britain, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 20 February 1875 |
| MC/10/213 | Letter from J J [John Jeremiah] Bigsby, to Dr [Thomas Henry] Huxley, [Secretary of the Royal Society] | January 1875 |
| MC/10/320 | Letter from Willm B [William Benjamin] Carpenter, University of London, Burlington House, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 16 December 1875 |
| MC/10/296 | Letter from E [Edward] Klein, The Brown Institution, Wandsworth Road, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 20 October 1875 |
| MC/10/292 | Letter from J Christison, Secretary, University Court Edinburgh, Edinburgh, to the Lord President of the Council, Council Office, Whitehall, London | 13 October 1875 |
| MC/10/298 | Letter from L A Beamish, Ashgrove, Queenstown, County Cork, to [George Gabriel Stokes and Thomas Henry Huxley], Secretaries of the Royal Society | 30 October 1875 |
| MC/10/311 | Letter from A [Albert] Günther, Zoological Department, British Museum, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 1 December 1875 |
| MC/10/307 | Letter from Norman MacLeod, South Kensington Museum, London, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society, Burlington House | 27 November 1875 |
| MC/10/291 | Letter from J Christison, Secretary, University Court Edinburgh, Edinburgh, to Dr [Joseph Dalton] Hooker, President of the Royal Society, London | 15 October 1875 |
| MC/10/352 | Letter from Fredr Jn O [Frederick John Owen] Evans, Hydrographic Department, Admiralty, to Professor T H [Thomas Henry] Huxley, [Secretary of the Royal Society], Burlington House | 14 February 1876 |
| MC/10/429 | Letter from Louis Mallet, India Office, to Professor T H [Thomas Henry] Huxley, [Secretary of the Royal Society] | 22 July 1876 |
| MC/10/416 | Letter from William B [Benjamin] Carpenter, registrar, University of London, Burlington Gardens, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 24 June 1876 |
| MC/10/480 | Letter from Dr Anton Dohrn, Zoological Station, Naples, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 29 December 1876 |
| MC/10/475 | Letter from Walter Flight, Mineral Department, British Museum, to Professor T H [Thomas Henry] Huxley, Secretary of the Royal Society | 16 December 1876 |
| MC/10 | Volume 10 of miscellaneous correspondence regarding business matters, sent to the Royal Society | July 1873-1876 |
| MC/11/36 | Letter from W [William] Farr, General Register Office, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 28 March 1877 |
| MC/10/229 | Letter from Francis Galton, 42 Rutland Gate, to [George Gabriel Stokes and Thomas Henry Huxley], Secretaries of the Royal Society | 11 March 1875 |
| PT/72/5 | Paper, 'On some foraminifera from the North Atlantic and Arctic Oceans, including Davis's Straits and Baffin's Bay' by W [William] Kitchen Parker and T [Thomas] Rupert Jones | [1864] |
| PT/72/5/2 | Plate, 'Arctic foraminifera' by G West | [1864] |
| PT/72/5/4 | Plate, 'Arctic foraminifera' by G West | [1864] |
| PT/72/5/6 | Plate, 'North-Atlantic foraminifera' by G West | [1864] |
| PT/72/5/11 | Plate, 'Foraminifera of the North Atlantic' by G West | [1864] |
| MC/11/69 | Letter from W R [William Richard] Gowers, 50 Queen Anne Street, Cavendish Square, to Thomas H [Henry] Huxley, Secretary of the Royal Society | 6 June 1877 |
| MC/11/133 | Letter from G C [George Charles] Wallich, Surgeon-Major Retired List, HM Indian Army, Scientific Club, 7 Savile Row, to [George Gabriel Stokes and Thomas Henry Huxley], Secretaries of the Royal Society | 9 December 1877 |
| MC/11/145 | Letter from C Bruce Allen, 274 Strand, to [George Gabriel Stokes and Thomas Henry Huxley], Secretaries of the Royal Society | 3 January 1878 |
| MC/11/153 | Letter from T H [Thomas Henry] Huxley, Scientific and Art Department, South Kensington, to [Walter] White, [Assistant Secretary of the Royal Society] | 15 January 1878 |
| MC/11/142 | Letter from John Evans, Nash Mills, Hemel Hempsted, to T H [Thomas Henry] Huxley, [Secretary of the Royal Society] | 31 December 1877 |
| MC/11/141 | Letter from G C [George Charles] Wallich, 162 Holland Road, Kensington, to Sir Joseph [Dalton] Hooker, President of the Royal Society | 28 December 1877 |
| AP/68/5 | Unpublished paper, 'On the alimentary canal of Pontia brassicae' by A B Griffiths | 1892 |
| AP/60/4 | Unpublished paper, 'Experimental researches on the temperature of the head' by J S Lombard | 1878 |
| AP/63/3 | Unpublished paper, 'On the structure and functions of the human corpus callosum' by D J [David James] Hamilton | 1884 |
| MC/11/194 | Letter from J J [John Jeremiah] Bigsby, 89 Gloucester Place, [Portman] Square, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 30 March 1878 |
| MC/11/181 | Letter from Norman MacLeod, Science and Art Department, London, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society, Burlington House | 9 March 1878 |
| MC/12/73 | Letter from R R W [Ralph Robert Wheeler] Lingen, Treasury Chambers, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society, Burlington House | 23 June 1880 |
| MC/11/263 | Letter from J F [James Francis] Tennant, Colonel Royal Engineers, HM Mint, Calcutta, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 1 November 1878 |
| MC/11/314 | Letter from A [Albert] Günther, British Museum, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 26 February 1879 |
| MC/11/317 | Letter from Joseph Radford, Secretary and Librarian, St Margaret and St John Westminster, Free Public Library, 23 Great Smith Street, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 6 March 1879 |
| MC/11/318 | Letter from William Thomson, The University Glasgow, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 10 March 1879 |
| MC/11/385 | Letter from Alex [Alexander] Crum Brown, University of Edinburgh, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society, Burlington House, London | 16 June 1879 |
| MC/11/362 | Letter from G J [George James] Symons, Secretary of the Meteorological Society, 30 Great George Street, Westminster, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 19 May 1879 |
| AP/36/23 | Paper, 'Contributions to the anatomy of the Brachiopoda' by T H [Thomas Henry] Huxley | 1854 |
| RR/3/191 | Referee's report by Thomas Henry Huxley, on two papers, 'Observations on the anatomy and affinities of the Phyllirrhoë bucephala' and 'Brief sketch of the anatomy of a new genus of pelagic gasteropoda, named Jasonilla' by John Denis MacDonald | 1856 |
| MC/11/401 | Letter from Nicholas Wagner, 32 Bedford Square, Gower Street, London, to Thom [Thomas Henry] Huxley, [Secretary of the Royal Society] | 15 July 1879 |
| MC/11/415 | Letter from W T [William Turner] Thiselton Dyer, Royal Gardens, Kew, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 1 September 1879 |
| MC/11/455 | Letter from Walter W [Waters] Reeves, Assistant Secretary of the Royal Microscopial Society, King's College, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 31 December 1879 |
| MC/11/447 | Letter from Wm [William] Pengelly, Lamorna, Torquay, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society, London | 28 November 1879 |
| MC/11 | Volume 11 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1877-1879 |
| MC/12/12 | Letter from Arthur Gamgee, The Owens College, Manchester, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 2 February 1880 |
| MC/12/26 | Letter from G G [George Gabriel] Stokes, [Secretary of the Royal Society], Lensfield Cottage, Cambridge, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 25 March 1880 |
| MC/12/43 | Letter from G D [George Downing] Liveing and James Dewar, Cambridge, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 9 May 1880 |
| MC/12/51 | Letter from W C [William Crawford] Williamson, Fallowfield, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 2 June 1880 |
| MC/12/38 | Letter from R [Robert] Angus Smith, Local Government Board Whitehall, Manchester, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society | 15 April 1880 |
| MC/12/47 | Letter from T H [Thomas Henry] Huxley, Secretary of the Royal Society, Burlington House, London, to Professor [George Downing] Liveing and Professor [James] Dewar | 21 May 1880 |
| MC/12/86 | Letter from T H [Thomas Henry] Huxley, 4 Marlborough Place, to [Walter] White, [Assistant Secretary of the Royal Society] | 28 July 1880 |
| MC/12/80 | Letter from C [Charles] Wyville Thomson, Bonsyde, Linlithgow, North Britain, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 15 July 1880 |
| MC/12/85 | Letter from E [Edwin] Ray Lankester, Savile Club, 15 Savile Row, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 29 July 1880 |
| MC/12/84 | Letter from E [Edwin] Ray Lankester, Savile Club, 15 Savile Row, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 26 July 1880 |
| MC/12/81 | Letter from T H [Thomas Henry] Huxley, Science and Art Department South Kensington, to [William] Spottiswoode, [President of the Royal Society] | 17 July 1880 |
| MC/12/107 | Letter from J [James] Emerson Reynolds, Trinity College, Dublin, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society, London | 1 November 1880 |
| MC/12/136 | Letter from J W [John Whitaker] Hulke, 10 Old Burlington Street, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 28 December 1880 |
| MC/12/144 | Letter from E J Arens, 23 York Place, Baker Street, to T H [Thomas Henry] Huxley, [Secretary of the Royal Society] | 24 January 1881 |
| MC/12/150 | Letter from John B [Berry] Haycraft, University of Edinburgh, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 7 March 1881 |
| MC/12/127 | Letter from Robert H [Henry] Scott, Meteorological Office, 116 Victoria Street, London, to Professor T H [Thomas Henry] Huxley, Secretary of the Royal Society | 1 December 1880 |
| MC/12/160 | Letter from Wm [William] Stirling, The University, Aberdeen, to Professor [Thomas Henry] Huxley, [Secretary of the Royal Society] | 19 April 1881 |
| MC/12/168 | Letter from John D [Denis] Macdonald, Alexandra Villa, [?], West Cowes, Isle of Wight, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 6 June 1881 |
| MC/12/153 | Letter from H E [Henry Enfield] Roscoe, The Owens College, Manchester, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 12 March 1881 |
| MC/12/173 | Letter from G G [George Gabriel] Stokes, [Secretary of the Royal Society], Lensfield Cottage, Cambridge, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 9 June 1881 |
| MC/12/186 | Letter from T H [Thomas Henry] Huxley, [Secretary of the Royal Society], 4 Marlborough Place, Abbey Road, to [Walter] White, [Assistant Secretary of the Royal Society] | 30 June 1881 |
| MC/12/362 | Letter from Leonard Courtney, Treasury Chambers, to [Thomas Henry Huxley], President of the Royal Society | 3 December 1883 |
| MC/12/217 | Letter from T H [Thomas Henry] Huxley, 4 Marlborough Place, Abbey Road, to [Walter] White, [Assistant Secretary of the Royal Society] | 6 November 1881 |
| MC/12/211 | Letter from M [Michael] Foster, Shelford, Cambridgeshire, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 30 October 1881 |
| MC/12/229 | Letter from James H Cropman [?], Reform Club, Pall Mall, to Professor [Thomas Henry] Huxley | 21 December 1881 |
| AP/43/6/1 | Manuscript, 'Histoire naturelle de la pourpre de anciens' [Natural history of the purple of the ancients] by [Henri de] Lacaze-Duthiers | 1860 |
| MC/12/276 | Letter from P H [Philip Henry] Gosse, Sandhurst, Torquay, to Professor [Thomas Henry] Huxley, Secretary of the Royal Society | 10 October 1881 |
| RR/3/119 | Referee's report by Thomas Henry Huxley, on a paper 'Researches on the poison-apparatus in the actiniadae' by Philip Henry Gosse | 1858 |
| MC/12/351 | Letter from James W Allison, 55 Gore Road, South Hackney, to [Thomas Henry Huxley], President of the Royal Society, and to the Fellows | 22 August 1883 |
| MC/12/363 | Letter from Abria, Faculty of Science, Academy of Bordeaux, Bordeaux, to [Thomas Henry Huxley], President of the Royal Society | 4 December 1883 |
| MC/12/365 | Letter from T H [Thomas Henry] Huxley, [President of the Royal Society], to [Walter] White, [Assistant Secretary of the Royal Society] | 7 November 1883 |
| MC/12/374 | Letter from C de Byland, Dutch Legation, London, to Professor T H [Thomas Henry] Huxley, President of the Royal Society | 29 November 1883 |
| MC/12/373 | Letter from Leonard Courtney, Treasury Chambers, to [Thomas Henry Huxley], President of the Royal Society | 21 December 1883 |
| MC/12 | Volume 12 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1880-1883 |
| MC/13/5 | Letter from Lord Carnarvon, Highclere Castle, Newbury, to [Thomas Henry] Huxley, [President of the Royal Society] | 17 January 1884 |
| MC/13/8 | Letter from Jos D [Joseph Dalton] Hooker and Henry N [Nottidge] Moseley, Royal Gardens, Kew, to [Thomas Henry Huxley], President of the Royal Society | 23 January 1884 |
| MC/13/21 | Letter from Richd [Richard] Owen, Sheen Lodge, Richmond Park, to [Thomas Henry Huxley], President of the Royal Society and to the Council | 28 February 1884 |
| MC/13/88 | Letter from W von Robert, Captain, Kapellenstrasse 37, Wiesbaden, to [Thomas Henry Huxley], President of the Royal Society | 22 August 1884 |
| MC/13/32 | Letter from R C Welly [?], Treasury Chambers, to [Thomas Henry Huxley], President of the Royal Society | 20 March 1884 |
| MC/13/35 | Letter from G B [George Biddell] Airy, The White House, Greenwich, to Professor [Thomas Henry] Huxley, President of the Royal Society | 24 March 1884 |
| MC/13/48 | Letter from D C [Daniel Coit] Gilman, President of Johns Hopkins University, Baltimore, to Professor T H [Thomas Henry] Huxley, President of the Royal Society | 5 May 1884 |
| MC/13/3 | Letter from J W [John William] Dawson, Cairo, to [Thomas Henry] Huxley, [President of the Royal Society] | 14 January 1884 |
| MC/13/6 | Letter from Leonard Courtney, Treasury Chambers, to [Thomas Henry Huxley], President of the Royal Society, Burlington House | 17 January 1884 |
| MC/13/31 | Letter from G W Underhill, Secretary to the Board of Visitors, Hydrographic Department, Admiralty, to Professor [Thomas Henry] Huxley, President of the Royal Society, Chairman of the Board of Visitors of the Royal Observatory | 18 March 1884 |
| MC/13/33 | Letter from G G [George Gabriel] Stokes, [Secretary of the Royal Society], Lensfield Cottage, Cambridge, to [Thomas Henry] Huxley, [President of the Royal Society] | 21 March 1884 |
| MC/13/70 | Letter from Joseph Prestwich, 35 St Giles', Oxford, to [Thomas Henry] Huxley, [President of the Royal Society] | 17 June 1884 |
| MC/13/59 | Letter from G W Underhill, Secretary to the Board of Visitors, Hydrographic Department, Admiralty, Whitehall, to Professor T H [Thomas Henry] Huxley, Chairman of the Board of Visitors | 13 June 1884 |
| MC/13/84 | Letter from Evan MacGregor, Admiralty, to [Thomas Henry Huxley], President of the Royal Society, Burlington House, Piccadilly | 5 August 1884 |
| MC/13/94 | Letter from Rd [Reginald] Welby, Treasury Chambers, to [Thomas Henry Huxley], President of the Royal Society | 23 September 1884 |
| MC/13/108 | Letter from Sir Herbert Sandford, 6 Lansdowne Road, Wimbledon, to Professor [Thomas Henry] Huxley, [President of the Royal Society] | 14 November 1884 |
| MC/13/115 | Letter from A [Alfred] Cornu, Paris, to [Thomas Henry Huxley], President of the Royal Society, London | 9 December 1884 |
| MC/13/102 | Letter from Robt [Robert] Murray Smith, 8 Victoria Chambers, Victoria Street, Westminster, to [Thomas Henry Huxley], President of the Royal Society | 23 October 1884 |
| MC/13/104 | Letter from Rob L J [Robert Lewis John] Ellery, President of the Royal Society of Victoria, Australia, Observatory Melbourne, to [Thomas Henry Huxley], President of the Royal Society, London | 1 November 1884 |
| MC/13/109 | Letter from John R [Robinson] Whitley, Director-General & Executive Commissioner, City Offices, 7 Poultry, London, to Professor Thos H [Thomas Henry] Huxley, President of the Royal Society | 15 November 1884 |
| MC/13 | Volume 13 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1884 |
| MC/12/346 | Letter from J [John] Pope Hennessy, Governor, Government House, Mauritius, to [Thomas Henry Huxley], President of the Royal Society | 11 July 1883 |
| MC/13/34 | Letter from G W Underhill, Secretary to the Board of Visitors, Hydrographic Department, Admiralty, to Professor [Thomas Henry] Huxley, President of the Royal Society, Chairman of the Board of Visitors of the Royal Observatory | 24 March 1884 |
| MC/13/38 | Letter from P L [Philip Lutley] Sclater, Secretary, Zoological Society of London, 11 Hanover Square, London, to [Thomas Henry] Huxley, President of the Royal Society | 31 March 1884 |
| MC/11/444 | Letter from Wm [William] Pengelly, Lamorna, Torquay, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society, London | 25 November 1879 |
| MS/427/36 | Copy letter from [Thomas Henry] Huxley, Secretary of the Royal Society; to the Secretary, Treasury | 18 June 1880 |
| MC/12/375 | Letter from Leonard Courtney, Treasury Chambers, to [Thomas Henry Huxley], President of the Royal Society, Burlington House | 31 December 1883 |
| MC/12/209 | Letter from Colonel J F D [John Fretcheville Dykes] Donnelly, Science and Art Department, London, to [Thomas Henry Huxley and George Gabriel Stokes], Secretaries of the Royal Society, Burlington House | 21 October 1881 |
| RR/4/96 | Referee's report by Thomas Henry Huxley, on a paper 'On the posterior lobes of the cerebrum of the quadrumana' by William Henry Flower | 29 October 1861 |
| AP/49/2 | Unpublished paper, 'On Ovibos moschatus (Blainville)' by W [William] Boyd Dawkins | 1865-1867 |
| AP/49/2/1 | Unpublished manuscript, 'On Ovibos moschatus (Blainville)' by W [William] Boyd Dawkins | 1857 |
| RR/6/195 | Letter from Thomas Henry Huxley, to George Gabriel Stokes, regarding a paper 'On the genera heterophyllia, battersbyia, palæcyclus, and asterosmilia; the anatomy of their species, and their position in the classification of sclerodermic zoantharia' by Peter Martin Duncan | 21 October 1867 |
| AP/55/9 | Unpublished letter, regarding 'Being an elementary contribution to the study of monocular and binocular vision' from James Jago to T H [Thomas Henry] Huxley | 11 March 1873 |
| AP/58/5 | Unpublished paper, 'The organ of Corti in mammals' by Urban Pritchard | 18 January 1876 |
| AP/57/5 | Unpublished paper, 'On the anatomy of the connective tissues' by G Thin | 1874 |
| AP/57/5/1 | Unpublished manuscript, 'On the anatomy of the connective tissues' by G Thin | 23 December 1874 |
| MC/8 | Volume 8 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1867-1869 |
| AP/57/2/1 | Unpublished manuscript, 'Preliminary observations on the locomotion system of Medusae' by G J [George John] Romanes | 1875 |
| AP/57/6 | Unpublished paper, 'On traumatic inflammation of connective tissue' by G [George] Thin | 1874 |
| AP/60/19/1 | Unpublished manuscript, 'About some general laws of animal life' by Nicholas [Nikolai] Wagner | 1879 |
| AP/60/19 | Unpublished paper, 'About some general laws of animal life' by Nicholas [Nikolai] Wagner | 1879 |
| AP/65/3 | Unpublished paper, 'On some new and typical micro-organisms obtained from water and soil' by Grace C [Coleridge] Frankland and Percy F [Faraday] Frankland | 1888 |
| AP/68/5/1 | Unpublished manuscript, 'On the alimentary canal of Pontia brassicae' by A B Griffiths | 1892 |
| AP/69/1 | Unpublished paper, 'On the colour of leaves of plants and their autumnal changes' by Arthur Hill Hassall | 1892 |
| PP/1/19 | Paper, 'On Bacterium decalvans: an organism associated with the destruction of the hair in alopecia areata' by George Thin | 1881 |
| PP/1/19/1 | Manuscript, 'On Bacterium decalvans: an organism associated with the destruction of the hair in alopecia areata' by George Thin | 1881 |
| PP/1/18/2 | Figures, Trichophyton tonsurans by George Thin | 1881 |
| PP/1/19/2 | Figures, Bacterium decalvans by George Thin | 1881 |
| PP/1/30 | Paper, 'A contribution to the pathology of the epidemic known as the "Salmon disease"' by T H [Thomas Henry] Huxley | 1882 |
| PP/2/20 | Paper, 'On the development of the enamel of the teeth of vertebrates' by E [Emily] Nunn | 1882 |
| PP/2/20/1 | Manuscript, 'On the development of the enamel of the teeth of vertebrates' by E [Emily] Nunn | 1882 |
| PP/2/20/2 | Figures, 'On the development of the enamel of the teeth of vertebrates' by E [Emily] Nunn | 1882 |
| PP/4/40 | Paper, 'On the natural and artificial fertilisation of herring ova' by J [James] Cossar Ewart | 1884 |
| PP/6/9/1 | Manuscript, 'On the marsupial ovum, the mammary pouch, and the male milk glands of Echidna hystrix' by Wilhelm Haacke | 22 September 1884 |
| PP/5/30 | Paper, 'President's Address' by the Treasurer of the Royal Society | 1884 |
| PP/6/9 | Paper, 'On the marsupial ovum, the mammary pouch, and the male milk glands of Echidna hystrix' by Wilhelm Haacke | 22 September 1884 |
| PP/10/30 | Paper, 'Preliminary note on the fossil remains of a Chelonian reptile, Ceratochelys sthenurus [Meiolania], from Lord Howe's Island, Australia' by Thomas H [Henry] Huxley | 1887 |
| PP/14/10 | Paper, 'On the early development of Lepidosteus osseus [Lepisosteus osseus, longnose gar]' by J Beard | 1889 |
| PT/64/14 | Paper, 'On the relations of the vomer, ethmoid, and intermaxillary bones' by John Cleland | [1861] |
| PT/71/1 | Paper, 'On the embryogeny of Antedon rosaceus (Lincks) (Comatula rosacea of Lamarck)' by Professor [Charles Thomas] Wyville Thomson | [1862] |
| RR/2/195 | Referee's report by Thomas Henry Huxley, on a paper 'The physical theory of muscular contraction' by Charles Bland Radcliffe | 1853 |
| RR/5/124 | Referee's report by George Busk, on a paper 'On the osteology of the genus glyptodon' by Thomas Henry Huxley | 20 May 1864 |
| RR/5/173 | Referee's report by Thomas Henry Huxley, on a paper 'On the structure and development of the skull in the ostrich tribe' by William Kitchen Parker | 6 December 1865 |
| RR/9/282 | Memorandum by George Gabriel Stokes, Thomas Henry Huxley, Michael Foster and John Evans, on a paper 'On beds of sponge-remains in the lower and upper greensand of the South of England' by George Jennings Hinde | 1885 |
| MC/14/66 | Letter from [George Gabriel] Stokes, Meteorological Office, London, to [Thomas Henry] Huxley | 15 July 1885 |
| MC/14/347 | Letter from [Thomas Henry] Huxley, to the Secretary of the Royal Society | 2 October 1888 |
| PP/1/18/1 | Manuscript, 'On the Trichophyton tonsurans (the fungus of ringworm)' by George Thin | 1881 |
| NLB/2/917 | Copy letter from [Michael Foster], to [John James Hornby] the Provost of Eton, The Lodge, Eton College | 22 December 1888 |
| MC/14/64 | Letter from [George Gabriel] Stokes, Lensfield Cottage, Cambridge, to [Thomas Henry] Huxley | 13 July 1885 |
| MC/14/11 | Letter from The Fine Art Society, to Walter White | 28 January 1885 |
| MC/14/57 | Letter from Sir William Henry Flower, British Museum, South Kensington, to [Thomas Henry] Huxley | 30 June 1885 |
| MC/14/65 | Letter from [George Gabriel] Stokes, Lensfield Cottage, Cambridge, to [Thomas Henry] Huxley | 15 July 1885 |
| MC/14/59 | Letter from Warren de la Rue, Portland Place, to [Thomas Henry] Huxley | 1 July 1885 |
| MC/14 | Volume 14 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1885-1888 |
| MC/16 | Volume 16 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1893-1896 |
| AP/43/6 | Paper, 'Histoire naturelle de la pourpre de anciens' [Natural history of the purple of the ancients] by [Henri de] Lacaze-Duthiers | 1859-1860 |