| Reference number | Title | Date |
| IM/Maull/003413 | Palgrave, Robert Harry Inglis | nd |
| IM/Maull/003412 | Palgrave, Robert Harry Inglis | nd |
| IM/Maull/003411 | Palgrave, Robert Harry Inglis | 1893 |
| NLB/23/2/28 | Copy letter from Sir Michael Foster, to Robert Harry Inglis Palgrave, Fellow of the Royal Society | 28 February 1901 |
| NLB/10/982 | Copy letter from Herbert Rix, to Robert Harry Inglis Palgrave, Fellow of the Royal Society, Belton, Great Yarmouth | 18 March 1895 |
| NLB/7/345 | Copy letter from Herbert Rix, to Robert Harry Inglis Palgrave, Fellow of the Royal Society | 25 January 1893 |
| NLB/5/470 | Copy letter from Herbert Rix, to Robert Harris Inglis Palgrave, Fellow of the Royal Society | 24 June 1891 |
| NLB/7/663 | Copy letter from Herbert Rix, to Robert Harry Inglis Palgrave, Fellow of the Royal Society | 6 April 1893 |
| NLB/7/734 | Copy letter from Herbert Rix, to Robert Harry Inglis Palgrave, Royal Hotel | 17 April 1893 |
| NLB/7/643 | Copy letter from Herbert Rix, to Robert Harry Inglis Palgrave, Fellow of the Royal Society | 25 March 1893 |
| NLB/11/156 | Copy letter from Herbert Rix, to Robert Harry Inglis Palgrave, Fellow of the Royal Society | 3 May 1895 |
| NLB/21/805 | Copy letter from Robert William Frederick Harrison, to Robert Harry Inglis Palgrave, Fellow of the Royal Society | 6 February 1901 |
| NLB/27/382 | Copy letter from an unknown correspondent, to Robert Harry Inglis Palgrave | 2 September 1903 |
| NLB/27/619 | Copy letter from Robert William Frederick Harrison, to Robert Harry Inglis Palgrave, Fellow of the Royal Society | 29 October 1903 |
| NLB/29/638 | Copy letter from Robert William Frederick Harrison, to Robert Harry Inglis Palgrave, Fellow of the Royal Society | 17 November 1904 |
| NLB/37/43 | Copy letter from Robert William Frederick Harrison to R [Robert Harry] Inglis Palgrave FRS | 15 January 1908 |
| NLB/37/641 | Copy letter from Robert William Frederick Harrison to Sir William Crookes, Fellow of the Royal Society | 23 April 1908 |
| NLB/40/588 | Copy letter from Robert William Frederick Harrison to Harrison & Sons | 30 June 1909 |
| NLB/42/48 | Copy letter from Robert William Frederick Harrison to Sir Robert H [Harry] Inglis Palgrave | 14 March 1910 |
| NLB/42/47 | Copy letter from Robert William Frederick Harrison to Sir Robert H [Harry] Inglis Palgrave | 14 March 1910 |
| NLB/47/506 | Copy letter from Robert William Frederick Harrison to Sir Robert Palgrave FRS | 11 February 1913 |
| NLB/47/171 | Copy letter from Robert William Frederick Harrison to Sir Robert Inglis Palgrave FRS | 10 December 1912 |
| NLB/50/50 | Copy letter from Robert William Frederick Harrison, to Sir Robert Inglis Palgrave, Fellow of the Royal Society | 22 April 1914 |
| NLB/56/426 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Mrs Barker; Henstead Hall, Wrentham, Norfolk | 7 February 1919 |
| NLB/56/417 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Messrs Harrison & Sons] | 4 February 1919 |
| NLB/56/494 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr. [Thomas George] Bonney, FRS | 21 February 1919 |
| EC/1882/18 | Palgrave, Sir Robert Harry Inglis: certificate of election to the Royal Society | |
| NLB/16/8 | Copy letter from Robert William Frederick Harrison, to R H Inglis Palgrave, Fellow of the Royal Society | 12 January 1898 |
| NLB/22/13 | Copy letter from Robert William Frederick Harrison, to the [Right Honorable Robert Harry Inglis] Palgrave, Fellow of the Royal Society | 11 February 1901 |
| MC/12/256 | Letter from R H [Robert Harry] Inglis Palgrave, Great Yarmouth, to G G [George Gabriel] Stokes, [Secretary of the Royal Society] | 12 June 1882 |
| MC/12 | Volume 12 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1880-1883 |