| RefNo | Title | Date |
| EC/1880/16 | Reynolds, James Emerson: certificate of election to the Royal Society | |
| MS/743/1/135 | Letter from James Emerson Reynolds, Trinity College, Dublin, to [John Hall] Gladstone | 2 June 1892 |
| IM/Maull/003796 | Reynolds, James Emerson | nd |
| IM/Maull/003795 | Reynolds, James Emerson | 1892 |
| NLB/2/625 | Copy letter from Herbert Rix, to Professor James Emerson Reynolds, Fellow of the Royal Society | 29 September 1888 |
| NLB/13/642 | Copy letter from Robert William Frederick Harrison, to Messrs Harrison & Sons | 26 October 1896 |
| NLB/12/573 | Copy letter from Herbert Rix, to Professor James Emerson Reynolds, Fellow of the Royal Society, 70 Morehampton Road, Dublin | 17 March 1896 |
| RR/15/198 | Letter from Walter Noel Hartley, on a paper 'Notes on quantitative spectra of beryllium' by Walter Noel Hartley to Robert Frederick William Harrison, Assistant Secretary of the Royal Society | 22 November 1901 |
| NLB/24/635 | Copy letter from Robert William Frederick Harrison, to Professor James Emerson Reynolds, Fellow of the Royal Society | 10 June 1902 |
| RR/19/100 | Referee's report [page one] by Alfred Harker, on a paper 'The synthesis of a silicalcyanide and of a felspar' by James Emerson Reynolds | 30 October 1912 |
| NLB/16/786 | Copy letter from an unknown correspondent, to [Professor James Emerson] Reynolds, Burleigh House, Burlington Road, Dublin | [6 June 1898] |
| NLB/17/121 | Copy letter from Robert William Frederick Harrison, to Professor James Emerson Reynolds, Fellow of the Royal Society, Burleigh House, Burlington Road, Dublin | 20 July 1898 |
| NLB/19/764 | Copy letter from Robert William Frederick Harrison, to Professor James Emerson Reynolds, Fellow of the Royal Society | 13 December 1899 |
| NLB/23/1/479 | Copy letter from Robert William Frederick Harrison, to Professor John Emerson Reynolds, Fellow of the Royal Society | 18 November 1901 |
| NLB/40/185 | Copy letter from Robert William Frederick Harrison to Professor J [James] Emerson Reynolds FRS | 27 April 1909 |
| NLB/42/256 | Copy letter from Robert William Frederick Harrison to Professor J [James] Emerson Reynolds FRS, 3 Inverness Gardens, Kensington, W | 2 May 1910 |
| NLB/55/184 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [James] Emerson Reynolds, FRS | 08 January 1918 |
| NLB/55/467 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr. [James] Emerson Reynolds, FRS | 16 April 1918 |
| RR/19/101 | Referee's report [page two] by Alfred Harker, on a paper 'The synthesis of a silicalcyanide and of a felspar' by James Emerson Reynolds | 30 October 1912 |
| AP/79/7 | Unpublished paper, 'Some catalytic phenomena, the stages of which have been traced experimentally' by Augustus E [Edward] Dixon and John Taylor | 1915 |
| NLB/57/889 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir [Thomas] Edward Thorpe, FRS, CB | 27 February 1920 |
| NLB/57/857 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to unknown correspondent | 23 February 1920 |
| MS/427/59 | Copy letter from Walter White, Assistant Secretary of the Royal Society; to Prof. [James] Emerson Reynolds | 29 October 1880 |
| MS/743/1/145 | Letter from James Emerson Reynolds, Trinity College, Dublin, to [John Hall] Gladstone | 27 April 1893 |
| NLB/2/678 | Copy letter from Herbert Rix, to Professor James Emerson Reynolds, Fellow of the Royal Society | 9 October 1888 |
| MC/9/32 | Letter from J [James] Emerson Reynolds, Laboratory, Royal Dublin Society, Kildare Street, to W A [William Allen] Miller, Treasurer of the Royal Society, King's College London | 17 February 1870 |
| MC/9/36 | Letter from J [James] Emerson Reynolds, Natural History Department, Royal Dublin Society, Kildare Street, to W A [William Allen] Miller, [Treasurer of the Royal Society] | 21 February 1870 |
| MC/9 | Volume 9 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1870-June 1873 |
| MC/12/60 | Letter from J [James] Emerson Reynolds, Trinity College Dublin, to Professor [George Gabriel] Stokes, Secretary of the Royal Society, London | 8 June 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 | Volume 12 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1880-1883 |
| PP/3/23 | Paper, 'Note on the atomic weight of glucinum or beryllium' by J [James] Emerson Reynolds | 1883 |
| PP/3/33 | Paper, 'Reply to a note by Professor J E [James Emerson] Reynolds on the atomic weight of glucinum or beryllium' by T S Humpidge | 1883 |
| PP/13/3 | Paper, 'Report of researches on silicon compounds and their derivatives. Part I' by J [James] Emerson Reynolds | 1888 |
| PP/13/4 | Paper, 'Preliminary note on a silico-organic compound of a new type' by J [James] Emerson Reynolds | 1888 |
| PP/1/29 | Paper, 'On the excretion of nitrogen by the skin' by J Byrne Power | 1882 |
| NLB/44/266 | Copy letter from Robert William Frederick Harrison to Professor J [James] E [Emerson] Reynolds FRS | 1 June 1911 |