| RefNo | Title | Date |
| NLB/57/56 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to unknown correspondent | 9 July 1919 |
| NLB/39/568 | Copy letter from John Rose Bradford to Professor Adrian Brown, The University, Birmingham | 5 February 1909 |
| NLB/40/277 | Copy letter from Robert William Frederick Harrison to A [Adrian] J [John] Jukes-Brown FRS, Floriston, Torre, Torquay | 17 May 1909 |
| NLB/44/393 | Copy letter from Robert William Frederick Harrison [signed by Theodore E James] to Messrs Harrison & Sons | 3 July 1911 |
| NLB/44/391 | Copy letter from Robert William Frederick Harrison [signed by Theodore E James] to Messrs Harrison & Sons | 3 July 1911 |
| NLB/51/17 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor Adrian John Brown FRS | 20 November 1914 |
| RR/25/47 | Referee's report by Adrian John Brown, on a paper 'The influence of external concentration on the position of the equilibrium attained in the intake of salts by plant cells' by Walter Stiles and Franklin Kidd | 13 August 1918 |
| RR/18/170 | Referee's report by Adrian John Brown, on a paper 'The permeability of the yeast-cell' by Sydney Paine | 16 July 1911 |
| NLB/57/57 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Prof. PF [Percy Faraday] Frankland, FRS | 10 July 1919 |
| NLB/55/264 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [John Bretland] Farmer, FRS | 07 February 1918 |
| NLB/55/285 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor Adrian [John] Brown, FRS | 13 February 1918 |
| 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 |
| NLB/57/98 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor HE [Henry Edward] Armstrong, FRS | 21 July 1919 |
| NLB/62/500 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [Henry Edward] Armstrong, FRS | 23 February 1922 |
| NLB/55/271 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Adrian John] Brown, FRS | 08 February 1918 |
| EC/1911/03 | Brown, Adrian John: certificate of election to the Royal Society | |
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |
| AP/79/3/1 | Unpublished manuscript, 'Studies on the reductase of liver and kidney - Part II: Spectroscopic investigation of the reduction of haemoglobin' by David Fraser Fraser-Harris and Henry Jermain Creighton | 1914 |
| AP/79/3/2 | Unpublished letter, regarding 'Studies on the reductase of liver and kidney - Part II: Spectroscopic investigation of the reduction of haemoglobin' from Adrian John Brown to Robert Harrison | 17 May 1915 |
| AP/79/3 | Unpublished paper, 'Studies on the reductase of liver and kidney - Part II: Spectroscopic investigation of the reduction of haemoglobin' by David Fraser Fraser-Harris and Henry Jermain Creighton | 1914-1915 |
| RR/22/28 | Referee's report by Vernon Herbert Blackman, on a paper 'The rate of absorption of various phenolic solutions by seeds of Hordeum vulgare, and the factors governing the rate of diffusion of aqueous solutions across semipermeable membranes' by Adrian John Brown and Frank Tinker | September 1915 |