| Reference number | Title | Date |
| MC/11/354 | Letter from A [Albert] Günther, British Museum, to W [Walter] White, [Assistant Secretary of the Royal Society] | 7 May 1879 |
| MM/14/157 | Letter from A C L G Gunther, British Museum, to George Gabriel Stokes | 24 March 1871 |
| NLB/10/174 | Copy letter from Herbert Rix, to Dr Albert Charles Lewis Gotthilf Gunther, Fellow of the Royal Society | 12 October 1894 |
| NLB/10/104 | Copy letter from Herbert Rix, to Dr Albert Charles Lewis Gotthilf Gunther, Fellow of the Royal Society | 1 October 1894 |
| NLB/14/625 | Copy letter from an unknown correspondent, to Dr Albert Charles Lewis Gotthilf Gunther, Fellow of the Royal Society, Secretary of Civil Engineers, and Walter Hills, President of the Pharmaceutical Society, 17 Bloomsbury Square, W.C. | 10 April 1897 |
| NLB/16/749 | Copy letter from an unknown correspondent, to R J Gunther | 1 June 1898 |
| NLB/18/776 | Copy letter from Robert William Frederick Harrison, to Professor Michael Foster, Secretary [of the Royal Society] | 10 May 1899 |
| NLB/31/668 | Copy letter from Robert William Frederick Harrison, to Dr Albert Charles Lewis Gotthilf Gunther, Fellow of the Royal Society | 30 October 1905 |
| NLB/36/444 | Copy letter from Archibald Geikie, to R J Gunther | 31 October 1907 |
| NLB/37/832 | Copy Letter from Robert William Frederick Harrison to Henry Balfour, Langley Lodge, Headingon Hill, Oxford | 21 May 1908 |
| NLB/42/360 | Copy letter from Robert William Frederick Harrison to Dr A [Albert Charles Lewis Gotthilf] Gunther FRS | 27 May 1910 |
| RR/7/452 | Referee's report by Albert Charles Gotthilf Lewis Gunther, on a paper 'Preliminary report of the biological results of a cruise in H. M. S. 'Valorous’ to Davis Strait in 1875' by John Gwyn Jeffreys | 4 August 1876 |
| RR/7/103 | Referee's report by George Rolleston, on a paper 'Description of Ceratodus, a genus of Ganoid fishes, recently discovered in rivers of Queensland, Australia' by Albert Günther | 7 June 1871 |
| RR/7/456 | Referee's report by Albert Charles Gotthilf Lewis Gunther, on a paper 'On the structure of a species of millepora occurring at Tahiti, Society Islands' by Henry Nottidge Moseley | 14 July 1876 |
| RR/9/84 | Referee's report by Albert Charles Lewis Gotthilf Gunther, on a paper 'Contributions to the anatomy of the central nervous system in vertebrate animals. Sub-section I. Teleostei. Appendix. On the brain of the Mormyridae' by Alfred Sanders | 4 November 1882 |
| RR/14/187 | Referee's report by Albert Charles Lewis Gottgilf Günther, on a paper 'The external features in the development of Lepidosiren paradoxa, Fitz' by John Graham Kerr | nd [May 1899] |
| EC/1867/05 | Gunther, Albert Charles Lewis Gotthilf: certificate of election to the Royal Society | |
| RR/15/205 | Referee's report by Albert Charles Lewis Gotthilf Gunther, on a paper 'The action of the spurge (Euphorbia hiberna, L.) on salmonoid fishes' by H M Kyle | 7 July 1901 |
| RR/9/385 | Referee's report by Albert Charles Lewis Gotthilf Gunther, on a paper 'On the blood-vessels of mustelus antarcticus: a contribution to the morphology of the vascular system in the vertebrata' by Thomas Jeffery Parker | 20 July 1886 |
| MC/10/265 | Letter from A [Albert] Günther, Zoological Department, British Museum, to [Walter] White, [Assistant Secretary of the Royal Society] | 8 June 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 | Volume 10 of miscellaneous correspondence regarding business matters, sent to the Royal Society | July 1873-1876 |
| MC/11/144 | Letter from A [Albert] Günther, British Museum, to the Secretary of the Royal Society | 3 January 1878 |
| MC/11/157 | Letter from A [Albert] Günther, British Museum, to [Walter] White, [Assistant Secretary of the Royal Society] | 19 January 1878 |
| AP/65/7 | Unpublished paper, 'Contributions to the anatomy of the central nervous system in vertebrate animals' by Alfred Sanders | 1888 |
| MC/11/217 | Letter from A [Albert] Günther, British Museum, to [Joseph Dalton] Hooker, [President of the Royal Society] | 21 May 1878 |
| MC/11/314 | Letter from A [Albert] Günther, British Museum, to [Thomas Henry] Huxley, [Secretary of the Royal Society] | 26 February 1879 |
| MC/11/407 | Letter from A [Albert] Günther, British Museum, to W [Walter] White, [Assistant Secretary of the Royal Society] | 27 July 1879 |
| MC/11 | Volume 11 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1877-1879 |
| RR/8/22 | Referee's report by George Busk, on a paper 'Description of the living and extinct races of gigantic land-tortoises.—Parts III. and IV. The races of the aldabra group and mascarene islands' by Albert Günther | 23 February 1877 |
| RR/8/23 | Letter from Albert Günther, to George Gabriel Stokes, regarding a paper 'Description of the living and extinct races of gigantic land-tortoises.—Parts III. and IV. The races of the aldabra group and mascarene islands' by Albert Günther | 26 March 1877 |
| PP/14/11 | Paper, 'On the dentition of Ornithorhynchus [platypus]' by [Michael Rogers] Oldfield Thomas | 1889 |
| RR/7/102 | Referee's report by William Henry Flower, on a paper 'Description of Ceratodus, a genus of Ganoid fishes, recently discovered in rivers of Queensland, Australia' by Albert Günther | 19 April 1871 |
| PP/15/18 | Paper, 'A milk dentition in Orcyteropus [aardvark]' by Oldfield Thomas | 1889 |
| RR/7/309 | Referee's report by George Busk, on a paper 'Description of the living and extinct races of gigantic land-tortoises. Parts I. & II - Introduction, and the tortoises of the galapagos islands' by Albert Charles Louis Gotthilf Gunther | 25 July 1874 |
| MC/16/43 | Letter from Henry Edward Armstrong, Horace T Brown, James Geikie, A H Green, A C L G Gunther, E Ray Lankester, E B Poulton, G J Romanes, to the Royal Society | [May 1893] |
| MC/25/93 | Letter from [Albert] Gunther, 2 Lichfield Road, Kew Gardens, to Mr [Robert] Harrison, [Royal Society] | 21 May 1910 |
| MC/17 | Volume 17 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1897-1899 |
| MC/26/102 | Letter from [Robert Theodore] Gunther, Magdalen College, Oxford, to [Robert] Harrison, [Royal Society] | 22 October 1911 |