| RefNo | Title | Date |
| NLB/16/437 | Copy letter from Robert William Frederick Harrison, to G A Boulenger, Fellow of the Royal Society | 4 April 1898 |
| NLB/13/313 | Copy letter from Robert William Frederick Harrison, to Professor Edwin Ray Lankester, Fellow of the Royal Society | 23 July 1896 |
| NLB/13/454 | Copy letter from Theodore E James, to Professor Edwin Ray Lankester, fellow of the Royal Society | 14 September 1896 |
| RR/16/24 | Referee's report by Edwin Tulley Newton, on a paper 'Reptilian remains from the Trias of Elgin' by George Albert Boulenger | 29 May 1903 |
| RR/16/25 | Referee's report by Richard Lydekker, on a paper 'Reptilian remains from the Trias of Elgin' by George Albert Boulenger | June 1903 |
| NLB/19/80 | Copy letter from Robert William Frederick Harrison, to George Albert Boulenger, Fellow of the Royal Society | 16 June 1899 |
| NLB/20/606 | Copy letter from Robert William Frederick Harrison, to George Albert Boulenger and Professor Thomas George Bond Howes, [Fellows of the Royal Society] | 30 May 1900 |
| NLB/23/2/406 | Copy letter from Joseph Larmor, to George Albert Boulenger, Fellow of the Royal Society | 11 December 1903 |
| NLB/23/1/304 | Copy letter from Robert William Frederick Harrison, to George Albert Boulenger, Fellow of the Royal Society | 23 October 1901 |
| NLB/27/45 | Copy letter from Robert William Frederick Harrison, to George Albert Boulenger, Fellow of the Royal Society | 23 June 1903 |
| NLB/24/512 | Copy letter from Robert William Frederick Harrison, to George Albert Boulenger, Fellow of the Royal Society | 28 May 1902 |
| NLB/24/489 | Copy letter from Robert William Frederick Harrison, to George Albert Boulenger, Fellow of the Royal Society | 24 May 1902 |
| NLB/24/463 | Copy letter from Robert William Frederick Harrison, to George Albert Boulenger, Fellow of the Royal Society | 23 May 1902 |
| NLB/27/124 | Copy letter from Robert William Frederick Harrison, to George Albert Boulenger, Fellow of the Royal Society | 6 July 1903 |
| NLB/26/618 | Copy letter from Robert William Frederick Harrison to, George Albert Boulenger, Fellow of the Royal Society | 1 May 1903 |
| NLB/26/674 | Copy letter from Robert William Frederick Harrison to, George Albert Boulenger, Fellow of the Royal Society | 8 May 1903 |
| NLB/26/729 | Copy letter from Robert William Frederick Harrison to, George Albert Boulenger, Fellow of the Royal Society | 20 May 1903 |
| NLB/26/718 | Copy letter from Robert William Frederick Harrison to, George Albert Boulenger, Fellow of the Royal Society | 19 May 1903 |
| NLB/33/461 | Copy letter from Theodore E James, to George Albert Boulenger, Fellow of the Royal Society | 7 September 1906 |
| NLB/31/121 | Copy letter from Robert William Frederick Harrison, to George Albert Boulenger, [Fellow of the Royal Society] | 26 June 1905 |
| NLB/31/463 | Copy letter from Robert William Frederick Harrison, to George Albert Boulenger, Fellow of the Royal Society | 22 September 1905 |
| NLB/58/527 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to [Messrs Harrison & Sons] | 17 May 1920 |
| IM/000456 | Boulenger, George Albert | 1922 |
| EC/1894/06 | Boulenger, George Albert: certificate of election to the Royal Society | |
| NLB/22/244 | Copy letter from Robert William Frederick Harrison, to [George Albert] Boulenger, Fellow of the Royal Society | 29 March 1901 |
| MC/19/80 | Letter from [George Albert] Boulenger, 8 Courtfield Road, to the Royal Society | 11 July 1904 |
| MC/17 | Volume 17 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1897-1899 |
| MC/19 | Volume 19 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1904 |