| RefNo | Title | Date |
| EC/1889/06 | Brown, Horace Tabberer: certificate of election to the Royal Society | |
| IM/Maull/000605 | Brown, Horace Tabberer | nd |
| NLB/14/825 | Copy letter from Robert William Frederick Harrison, to Herbert Rix, Secretary, Lawes Trust Committee | 26 May 1897 |
| NLB/23/2/391 | Copy letter from Joseph Larmor, to General The Right Honorable Sir Dighton Probyn | 5 November 1903 |
| RR/16/320 | Referee's report by Horace Tabberer Brown, on a paper 'The effect of plant growth & of manures upon the soil: the retention of bases by the soil' by A D Hall and N H J Muller | 2 June 1905 |
| RR/15/182 | Referee's report by Horace Tabberer Brown, on a paper 'The nature & origin of the poison of lotus arabicus' by Wyndham Rowland Dunstan and T A Henry | June 1901 |
| NLB/21/194 | Copy letter from Robert William Frederick Harrison, to Dr Horace Tabberer Brown, Fellow of the Royal Society | 25 September 1900 |
| NLB/14/824 | Copy letter from Robert William Frederick Harrison, to Horace Tabberer Brown, Fellow of the Royal Society | 25 May 1897 |
| RR/16/322 | Referee's report by Horace Tabberer Brown, on a paper 'The function of silica in the nutrition of cereals. Part I.' by A D Hall and C G T Morison | February 1905 |
| RR/15/322 | Referee's report by Horace Tabberer Brown, on a paper 'Cyanogenesis in plants. Part II. The great millet, sorghum vulgare' by Wyndham Rowland Dunstan and Thomas A Henry | 1 June 1902 |
| RR/16/229 | Referee's report by Horace Tabberer Brown, on a paper 'Studies on enzyme action' by George Senter | 5 June 1904 |
| RR/16/139 | Referee's report by Horace Tabberer Brown, on four papers 'Studies on enzyme action. II.--The rate of the change, conditioned by sucroclastic enzymes, and its bearing on the Law of Mass Action' and ''Studies on enzyme action. III.--The influence of the products of change on the rate of change conditioned by sucroclastic enzymes' by Henry Edward Armstrong, 'Studies on enzyme action. IV.--The sucroclastic action of acids as contrasted with that of enzymes' by Edward Frankland Armstrong and Robert John Caldwell and 'Enzyme action as bearing on the validity of the Ionic-Dissociation Hypothesis and on the phenomena of vital change' by Henry Edward Armstrong | 10 May 1904 |
| RR/19/9 | Referee's report by Horace Tabberer Brown, on a paper 'Studies of enzyme action. XV.—Urease: a selective enzyme' by Henry Edward Armstrong and Edward Horton | [January 1912] |
| RR/16/274 | Referee's report by Horace Tabberer Brown, on a paper 'The spontaneous action of radioactive bodies upon gelatin media' by Mr J B Burke | June 1905 |
| RR/16/192 | Referee's report by Horace Tabberer Brown, on a paper 'The dual force of the dividing cell. Part I. The Achromatic Spindle Figure, elucidated by magnetic chains of force' by Marcus Hartog | 19 January 1905 |
| RR/17/88 | Referee's report by Horace Tabberer Brown, on a paper 'The action of radium and certain other salts on gelatin' by W A Douglas Rudge | [June 1906] |
| RR/19/4 | Referee's report by Horace Tabberer Brown, on a paper 'Studies on enzyme action. XVI.—The enzymes of emulsin. (I) Prunase, the correlate of prunasin' by Henry Edward Armstrong, Edward Frankland Armstrong and Edward Horton | [April 1912] |
| RR/17/157 | Referee's report by Horace Tabberer Brown, on a paper 'Cyanogenesis in plants. Part VI.—On phaseolunatin and the associated enzymes in flax, cassava, and the "lima bean."' by Wyndham Rowland Dunstan, Thomas A Henry and S J M Auld | [March 1907] |
| NLB/15/597 | Copy letter from Arthur William Rucker, to William Turner Thiselton-Dyer | 2 November 1897 |
| NLB/17/648 | Copy letter from Robert William Frederick Harrison, to Horace Tabberer Brown, Fellow of the Royal Society, 52 Nevern Square, Kensington, S.W. | 8 December 1898 |
| NLB/23/2/397 | Copy letter from Joseph Larmor, to Horace Tabberer Brown, Fellow of the Royal Society | 12 November 1903 |
| NLB/19/336 | Copy letter from Theodore E James, to Horace Tabberer Brown, Fellow of the Royal Society | 10 August 1899 |
| NLB/21/48 | Copy letter from Robert William Frederick Harrison, to Horace Tabberer Brown, Fellow of the Royal Society | 20 July 1900 |
| NLB/21/18 | Copy letter from Robert William Frederick Harrison, to Dr Dukinfield Henry Scott, Fellow of the Royal Society | 16 July 1900 |
| NLB/21/59 | Copy letter from Robert William Frederick Harrison, to Dr Dukinfield HenryScott, Fellow of the Royal Society | 22 July 1900 |
| NLB/21/19 | Copy letter from Robert William Frederick Harrison, to Professor George Carey Foster, Fellow of the Royal Society | 16 July 1900 |
| NLB/21/419 | Copy letter from Robert William Frederick Harrison, to Horace Tabberer Brown, 52 Nevern Square, Kensington, S.W. | 16 November 1900 |
| NLB/23/2/36 | Copy letter from Sir Michael Foster, to [Horace Tabberer] Brown, Fellow of the Royal Society, and F Escombe | 5 March 1901 |
| NLB/24/527 | Copy letter from Robert William Frederick Harrison, to [Horace Tabberer] Brown, Fellow of the Royal Society | 30 May 1902 |
| NLB/24/360 | Copy letter from Robert William Frederick Harrison, to Horace Tabberer Brown, Fellow of the Royal Society | 2 May 1902 |
| NLB/24/668 | Copy letter from Robert William Frederick Harrison, to The Swan Electric Engraving Company | 16 June 1902 |
| NLB/26/101 | Copy letter from Robert William Frederick Harrison to, Horace Tabberer Brown, Fellow of the Royal Society | 27 January 1903 |
| NLB/26/122 | Copy letter from Robert William Frederick Harrison to, Horace [Tabberer] Brown, Fellow of the Royal Society, 52 Nevern Square, Kensington, S.W. | 28 January 1903 |
| NLB/27/190 | Copy letter from Robert William Frederick Harrison, to Dr Horace Tabberer Brown, Fellow of the Royal Society | 16 July 1903 |
| NLB/30/93 | Copy letter from Joseph Larmor, to Horace Tabberer Brown, Fellow of the Royal Society | 26 January 1905 |
| RR/18/98 | Referee's report by Horace Tabberer Brown, on a paper 'The action of bacillus lactis aërogenes on glucose and mannitol' by G S Walpole | 30 October 1910 |
| NLB/30/487 | Copy letter from Robert William Frederick Harrison, to Dr Horace Tabberer Brown, Fellow of the Royal Society, 52 Nevern Square, Kensington | 31 March 1905 |
| NLB/30/363 | Copy letter from Robert William Frederick Harrison, to Horace Tabberer Brown, Fellow of the Royal Society | 13 March 1905 |
| NLB/29/304 | Copy letter from Robert William Frederick Harrison, to Horace Tabberer Brown, Fellow of the Royal Society | 15 September 1904 |
| NLB/30/440 | Copy letter from Robert William Frederick Harrison, to Dr Horace Tabberer Brown, Fellow of the Royal Society | 24 March 1905 |
| NLB/28/830 | Copy letter from Joseph Larmor, to Horace Tabberer Brown, Fellow of the Royal Society | 2 June 1904 |
| NLB/29/908 | Copy letter from Robert William Frederick Harrison, to Horace Tabberer Brown, Fellow of the Royal Society | 11 January 1905 |
| NLB/34/500 | Copy letter from Robert William Frederick Harrison, to Dr Horace Tabberer Brown, Fellow of the Royal Society | 30 January 1907 |
| NLB/32/859 | Copy letter from Joseph Larmor, to Dr Horace Brown, [Fellow of the Royal Society] | 7 June 1906 |
| NLB/36/492 | Copy letter from Robert William Frederick Harrison, to Horace Brown, Fellow of the Royal Society | 4 November 1907 |
| NLB/35/661 | Copy letter from Robert William Frederick Harrison, to Horace Tabberer Brown, Fellow of the Royal Society | 27 June 1907 |
| NLB/36/826 | Copy letter from Robert William Frederick Harrison, to Horace Tabberer Brown, Fellow of the Royal Society | 23 December 1907 |
| NLB/43/294 | Copy letter from Robert William Frederick Harrison, to Horace Tabberer Brown, Fellow of the Royal Society | 6 December 1910 |
| NLB/44/58 | Copy letter from Robert William Frederick Harrison to H [Horace] T [Tabberer] Brown LL.D, FRS | 1 May 1910 |
| NLB/44/246 | Copy letter from Robert William Frederick Harrison to Horace Brown FRS | 30 May 1911 |
| NLB/46/538 | Copy letter from T E James, to Horace Tabberer Brown, Fellow of the Royal Society | 18 September 1912 |
| NLB/47/315 | Copy letter from Robert William Frederick Harrison to Horace T [Tabberer] Brown FRS | 14 January 1912 |
| NLB/51/267 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Horace Tabberer Brown FRS | 27 January 1915 |
| NLB/52/476 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Horace Tabberer Brown Esquire, FRS | 17 December 1915 |
| RR/16/315 | Referee's report by Horace Tabberer Brown, on a paper 'Further observations on the germination of the seeds of the castor oil plant (ricinus communis)' by Joseph Reynolds Green and H Jackson | 30 March 1905 |
| RR/17/115 | Referee's report by Horace Tabberer Brown, on 'Studies on enzyme action. X. — The nature of enzymes' by Henry Edward Armstrong and Edward Frankland Armstrong | [May 1907] |
| NLB/52/505 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Horace Tabberer Brown Esquire, FRS | 4 January 1916 |
| RR/17/105 | Referee's report by Horace Tabberer Brown, on a paper 'The mechanism of carbon assimilation in green plants: the photolytic decomposition of carbon dioxide in vitro' by Francis L Usher and J H Priestley | [May 1906] |
| NLB/54/17 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Horace Tabberer] Brown Esquire, FRS | 22 January 1917 |
| RR/19/6 | Referee's report by Horace Tabberer Brown, on a paper 'Studies on enzyme action. XVIII.—Enzymes of the emulsin type. (III) Linase and other enzymes in Linaceae' by Henry Edward Armstrong and J Vargas Eyre | [April 1912] |
| RR/20/8 | Referee's report by Horace Tabberer Brown, on a paper 'Studies on enzyme action XIX - Urease: a selective enzyme II - Observations on accelerative and inhibitive agents' by Henry Edward Armstrong and M S Benjamin and Edward Horton | 17 January 1913 |
| RR/19/137 | Referee's report by Horace Tabberer Brown, on a paper 'The chemical action of Bacillus cloacae (Jordan) on citric and malic acids in the presence and absence of oxygen' by James Thompson | 28 September 1912 |
| RR/20/58 | Referee's report by Horace Tabberer Brown, on a paper 'The soil solution and the mineral constituents soil' by Alred Daniel Hall, Winifred Elsie Brenchley and Lilian Marion Underwood | 20 June 1913 |
| RR/24/64 | Referee's report by Horace Tabberer Brown, on a paper 'Some effects of organic growth-promoting substances (auximones) on the soil organisms concerned in the nitrogen cycle' by Florence A Mockeridge | 11 February 1917 |
| RR/23/51 | Referee's report by Horace Tabberer Brown, on a paper 'Some photochemical experiments with pure chlorophyll and their bearing on theories of carbon assimilation' by Ingvar Jörgensen and Franklin Kidd | 15 July 1916 |
| NLB/54/381 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [Francis Wall] Oliver, FRS | 26 April 1917 |
| RR/24/18 | Referee's report by Horace Tabberer Brown, on a paper 'Some effects of organic growth-promoting substances (auximones) on the growth of Lemna minor in mineral culture solutions' by W B Bottomley | 11 February 1917 |
| NLB/56/407 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Horace [Tabberer] Brown Esquire, FRS | 31 January 1919 |
| RR/22/22 | Referee's report by Horace Tabberer Brown, on a paper 'The influence of auximones on the growth of Lenna Minor' by W B Bottomley | 21 January 1916 |
| NLB/56/592 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Horace Tabberer] Brown Esquire, FRS | 24 March 1919 |
| NLB/56/796 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Horace [Tabberer] Brown Esquire, FRS | 28 May 1919 |
| RR/14/26 | Referee's report by Horace Tabberer Brown, on a paper 'Observations on stomata' by Francis Darwin | 19 June 1898 |
| NLB/58/688 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Dr. Horace [Tabberer] Brown, FRS | 7 June 1920 |
| RR/11/216 | Referee's report by Horace Tabberer Brown, on a paper 'The ginger-beer plant, and the organisms composing it: a contribution to the study of fermentation-yeasts and bacteria' by Harry Marshall Ward | 29 January 1892 |
| RR/18/4 | Referee's report by Horace Tabbeler Brown, on a paper 'On the origins of osmotic effects III' by Henry Edward Armstrong and Edward Frankland Armstrong | 1 May 1910 |
| NLB/60/92 | Copy letter from David Prain, Treasurer and Vice President of the Royal Society; to [Horace Tabberer] Brown Esquire, FRS | 10 December 1920 |
| RR/17/143 | Referee's report by Horace Tabberer Brown, on a paper 'Studies on enzyme action. IX.— The enzymes of yeast: amygdalase' by Robert John Caldwell and S L Courtauld | [May 1907] |
| RR/18/38 | Referee's report by Horace Tabberer Brown, on a paper 'The oxidation of phenol by certain bacteria in pure culture' by Gilbert J Fowler, Edward Ardern and William T Lockett | 8 October 1910 |
| RR/15/19 | Referee's report by William Ramsay, on a paper 'Some new observations on the static diffusion of gases and liquids and their significance in certain natural processes occurring in plants' by Horace Tabberer Brown and F Escombe | June 1900 |
| RR/16/396 | Referee's report by Horace Tabberer Brown, on a paper 'A study of the mechanism of carbon assimilation in green plants' by Francis L Usher and J H Priestley | January 1906 |
| NLB/59/700 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Horace [Tabberer] Brown Esquire, FRS | 4 November 1920 |
| RR/20/7 | Referee's report by Horace Tabberer Brown, on a paper 'Herbage Studies II - Variation in Lotus corniculatus and trifolium repens (Cyanophoric plants)' by Henry Edward Armstrong, Edward Frankland Armstrong and Edward Horton | 17 January 1913 |
| RR/14/243 | Referee's report by Horace Tabberer Brown, on a paper 'A soil bacillus of the type of De Bary’s B. Megatherium' by W C Sturgis | nd [February 1899] |
| NLB/57/46 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to HT [Horace Tabberer] Brown Esq, FRS | 7 July 1919 |
| RR/18/87 | Referee's report by Horace Tabberer Brown, on a paper 'Experimental researches on vegetable assimilation and respiration. VI.—Some experiments on assimilation in the open air' by David Thoday | 13 March 1910 |
| RR/22/66 | Referee's report by Horace Tabberer Brown, on a paper 'The controlling influence of carbon dioxide. Part III.—The retarding effect of carbon dioxide on respiration' by Franklin Kidd | 2 September 1915 |
| NLB/56/291 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr. [Henry Forster] Morley, Director of the International Catalogue of Scientific Literature | 7 January 1919 |
| NLB/55/701 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Horace Tabberer] Brown Esq., FRS | 25 July 1918 |
| NLB/67/685 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [John Bretland] Farmer, FRS | 14 February 1925 |
| NLB/64/901 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to the Secretary of the Imperial College of Science and Technology, South Kensington, S.W.7 | 7 July 1923 |
| RR/15/33 | Referee's report by Horace Taberrer Brown, on a paper 'A chemical study of the phosphoric acid and potash content of the wheat soil of Broadbalk Field Rothamsted' by Bernard Dyer | December 1900 |
| NLB/68/713 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [John Bretland] Farmer, FRS | 20 October 1925 |
| RR/20/15 | Referee's report by Horace Tabberer Brown, on a paper 'The formation of humus from organic substances' by W B Bottomley | June 1913 |
| RR/16/44 | Referee's report by Horace Tabberer Brown, on a paper 'Cyanogensis in Plants, Part III. On Phaseolunation, the Cyanogenetic Glucoside of Phaeolus Lunatus' by Wyndham Rowland Dunstan andThomas A Henry | July 1903 |
| RR/16/178 | Referee's report by Horace Tabberer Brown, on a paper 'The ascent of water in trees' by Alfred James Ewart | February 1905 |
| NLB/34/569 | Copy letter from Robert William Frederick Harrison, to Dr Horace Tabberer Brown, Fellow of the Royal Society | 8 February 1907 |
| RR/16/82 | Referee's report by Horrace Tabberer Brown, on a paper 'Experimental researches on vegetable- assimilation and respiration III. On the effect of temperature on Carbon Dioxide assimilation' by Gabrielle Louise Caroline Matthaei | October 1903 |
| RR/19/5 | Referee's report by Horace Tabberer Brown, on a paper 'Studies on enzyme action. XVII.—Enzymes of the emulsin type. (II) The distribution of ß-enzymes in plants' by Henry Edward Armstrong, Edward Frankland Armstrong and Edward Horton | [April 1912] |
| NLB/54 | New Letter Book volume 54, copy letters sent from Royal Society administration | 10 January 1917-2 November 1917 |
| NLB/55/577 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to William Foster Esq., C.I.E., Registar & Superintendent of Records, India Office | 17 June 1918 |
| RR/15/21 | Referee's report by Francis Darwin, on a paper 'Some new observations on the static diffusion of gases and liquids and their significance in certain natural processes occurring in plants' by Horace Tabberer Brown and F Escombe | 13 July 1900 |
| RR/15/65 | Memoranda from Robert William Frederick Harrison and reply from George Carey Foster, on a paper 'On the static diffusion of gases and liquids' by Horace Tabberer Brown and F Escombe and 'On the distribution of molecular energy' by James Hopwood Jeans | 16 July 1900 |
| MS/603/1/141 | Letter from Horace T [Tabberer] Brown, 52 Nevern Square, Kensington, to [Joseph] Larmor | 13 June 1900 |
| MS/603/1/144 | Letter from Horace T [Tabberer] Brown, 52 Nevern Square, Kensington, to [Joseph] Larmor | 9 May 1905 |
| MS/603/1/139 | Letter from Horace T [Tabberer] Brown, 52 Nevern Square, Kensington, to [Joseph] Larmor | 22 May 1900 |
| MS/603/1/137 | Letter from Horace T [Tabberer] Brown, 52 Nevern Square, Kensington, to [Joseph] Larmor | 26 September 1899 |
| MS/603/1/140 | Letter from Horace T [Tabberer] Brown, 52 Nevern Square, Kensington, to [Joseph] Larmor | 27 May 1900 |
| MS/603/1/142 | Letter from Horace T [Tabberer] Brown, 52 Nevern Square, Kensington, to [Joseph] Larmor | 12 November 1900 |
| MS/603/1/146 | Letter from Horace T [Tabberer] Brown, 52 Nevern Square, Kensington, to [Joseph] Larmor | 11 December 1905 |
| MS/603/1/148 | Letter from Horace T [Tabberer] Brown, The Athenaeum, Pall Mall, to [Joseph] Larmor | 18 March 1918 |
| MS/603/1/143 | Letter from Horace T [Tabberer] Brown, Savile Club, 107 Piccadilly, to [Joseph] Larmor | 27 March 1905 |
| RR/14/78 | Referee's report by Horace Tabberer Brown, on a paper 'Contributions to our knowledge of the formation, storage, and depletion of carbohydrates in monocotyledons' by John Parkin | 30 November 1898 |
| RR/16/140 | Referee's report by Horace Tabberer Brown, on a paper 'The fossil flora of the Culm-Measures of North West Devon, and the palaeobotanical evidence with regard to the age of the beds' by E A Newell Arber | 17 June 1904 |
| RR/15/20 | Referee's report by Hugh Longbourne Callendar, on a paper 'Some new observations on the static diffusion of gases and liquids and their significance in certain natural processes occurring in plants' by Horace Tabberer Brown and F Escombe | June 1900 |
| RR/13/181 | Letter from Horace Tabberer Brown, on a paper 'Some observations on the chemistry of the contents of the alimentary tract under various conditions; and on the influence of the bacteria present in them' by A Lockhart Gillespie to the Secretary of the Royal Society | 24 June 1892 |
| RR/14/188 | Referee's report by Horace Tabberer Brown, on a paper 'Agricultural, botanical, and chemical results of experiments on the mixed herbage of permanent grass-land, conducted for many years in succession on the same land.—Part III. The chemical results' by John Bennet Lawes and Joseph Henry Gilbert | 15 August 1899 |
| RR/18/141 | Referee's report by Horace Tabberer Brown, on a paper 'The alcoholic ferment of yeast-juice. Part VI - The influence of arsenates and arsenites on the fermentation of the sugars by yeast-juice' by Arthur Harden and W J Young | 24 January 1911 |
| RR/20/97 | Referee's report by Horace Tabberer Brown, on a paper 'Synthesis by sunlight in relationship to the origin of life. Synthesis of formaldehyde from carbon dioxide and water by inorganic colloids acting as transformers of light energy' by Benjamin Moore and T A Webster | July 1913 |
| 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/19/96 | Letter from Horace [Tabberer] Brown, 52 Nevern Square, Kensington, to Robert [William Frederick] Harrison | 30 August 1904 |
| MC/19/95 | Letter from Horace [Tabberer] Brown, 52 Nevern Square, Kensington, to Robert [William Frederick] Harrison | 30 June 1904 |
| MS/603/1/138 | Letter from [Horace Tabberer Brown], 52 Nevern Square, Kensington, to [Joseph] Larmor | 27 September 1899 |
| MS/603/1/145 | Letter from Horace T [Tabberer] Brown, 52 Nevern Square, Kensington, to [Joseph] Larmor | 18 November 1905 |
| MS/603/1/147 | Letter from Horace T [Tabberer] Brown, 52 Nevern Square, Kensington, to [Joseph] Larmor | 13 November 1916 |
| MC/17 | Volume 17 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1897-1899 |
| NLB/47/186 | Copy letter from Robert William Frederick Harrison to H [Horace] T [Tabberer] Brown FRS | 12 December 1912 |
| MC/19 | Volume 19 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1904 |