| Reference number | Title | Date |
| EC/1920/08 | Knott, Cargill Gilston: certificate of election to the Royal Society | |
| AP/73/2/2 | Unpublished map, 'Japan, showing earthquake districts' by Cargill Gilston Knott | 1896 |
| NLB/14/141 | Copy letter from an unknown correspondent, to Professor Gargill Gilston Knott, 42 Upper Gray Street, Edinburgh | 11 January 1897 |
| NLB/14/152 | Copy letter from Arthur William Rucker, to Professor Cargill Gilston Knott | 13 January 1897 |
| RR/13/52a | Referee's report by George Howard Darwin, on a paper 'On lunar periodicities in earthquake frequency' by Cargill Gilston Knott | 23 November 1896 |
| NLB/14/123 | Copy letter from Robert William Frederick Harrison, to Professor Arthur William Rucker, Secretary, Royal Society | 11 January 1897 |
| NLB/14/854 | Copy letter from Arthur William Rucker, to Arthur Schuster, [Fellow of the Royal Society] | 28 May 1897 |
| NLB/19/630 | Copy letter from Arthur William Rucker, to Professor Cargill Gilston Knott, Fellow of the Royal Society | 12 November 1899 |
| NLB/19/250 | Copy letter from Arthur William Rucker, to Professor Cargill Gilston Knott, [Fellow of the Royal Society] | 19 July 1899 |
| MC/23/253 | Letter from [Cargill Gilston] Knott, University of Edinburgh, to the Secretary, The Royal Society | 26 March 1908 |
| NLB/56/310 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr. [Cargill Gilston] Knott, FRS | 11 January 1919 |
| RR/26/89 | Referee's report by Cargill Gilston Knott, on a paper 'Multenions and differential invariants. —II' by Alex McAulay | [October 1921] |
| NLB/59/386 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Dr. [Cargill Gilston] Knott, FRS | 27 September 1920 |
| RR/13/52 | Second referee's report by Arthur Schuster, on a paper 'On lunar periodicities in earthquake frequency' by Cargill Gilston Knott | 1896 |
| NLB/56/725 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Cargill Gilston] Knott, FRS | 12 May 1919 |
| NLB/58/41 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Cargill Gilston] Knott, FRS | 4 March 1920 |
| NLB/58/521 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Cargill Gilston] Knott, FRS | 15 May 1920 |
| NLB/58/902 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Dr. [Cargill Gilston] Knott Esquire, FRS | 1 July 1920 |
| RR/13/51 | Referee's report by Arthur Schuster, on a paper 'On lunar periodicities in earthquake frequency' by Cargill Gilston Knott | 1896 |
| RR/13/54 | Letter from Cargill Gilston Knott, on his paper 'On lunar periodicities in earthquake frequency' to the Secretary of the Royal Society | 7 January 1897 |
| NLB/59/45 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Cargill Gilston] Knott, FRS | 12 July 1920 |
| NLB/60/608 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Cargill Gilston] Knott, FRS | 2 March 1921 |
| RR/13/53 | Letter from George Howard Darwin, on a paper 'On lunar periodicities in earthquake frequency' by Cargill Gilston Knott to Richard Tetley Glazebrook | 11 December 1896 |
| RR/14/213 | Referee's report by Cargill Gilston Knott, on a paper 'On the propagation of earthquake motion to great distances' by Richard Dixon Oldham | nd [July 1899] |
| NLB/59/711 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Dr. [Cargill Gilston] Knott, FRS | 5 November 1920 |
| RR/14/214 | Letter from Cargill Gilston Knott, to Arthur William Rucker, regarding a paper 'On the propagation of earthquake motion to great distances' by Richard Dixon Oldham | 27 July 1899 |
| NLB/60/468 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Cargill Gillston] Knott, FRS | 11 February 1921 |
| NLB/60/288 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Dr. [Cargill Gilston] Knott, FRS; Royal Society of Edinburgh, 22 George Street, Edinburgh | 13 January 1921 |
| NLB/64/314 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to the Assistant Secretary of the Royal Society of Edinbrugh; 22 George Street, Edinburgh | 12 March 1923 |
| NLB/61/705 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Cargill Gilston] Knott, FRS | 14 October 1921 |
| NLB/61/256 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Dr. [Cargill Gilston] Knott, FRS; 47 Upper Gray Street, Edinburgh | 9 June 1921 |
| NLB/61/553 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Cargill Gilston] Knott, FRS | 26 July 1921 |
| NLB/61/463 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Cargill Gilston] Knott, FRS; Royal Society of Edinburgh, 22 George Street, Edinburgh | 9 July 1921 |
| NLB/61/371 | Copy letter from an unknown correspondent; to Professor [Cargill Gilston] Knott, FRS | 24 June 1921 |
| NLB/61/567 | Copy letter from [Alfred Hastings White, Assistant Librarian of the Royal Society]; to Professor [Cargill Gilston] Knott, FRS | 3 August 1921 |
| NLB/61/572 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Cargill Gilston] Knott, FRS | 8 August 1921 |
| NLB/62/216 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Cargill Gilston] Knott, FRS | 3 January 1922 |
| NLB/57/881 | Copy letter from unknown correspondent; to unknown correspondent | 26 February 1920 |
| NLB/61/492 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Cargill Gilston] Knott, FRS | 12 July 1921 |
| NLB/58 | New Letter Book volume 58, copy letters sent from Royal Society administration | 28 February 1920-9 July 1920 |
| NLB/60 | New Letter Book volume 60, copy letters sent from Royal Society administration | 2 December 1920-26 April 1921 |
| NLB/14/82 | Copy letter from Michael Foster, to Professor Cargill Gilston Knott, 42 Upper Gray Street, Edinburgh | 24 December 1896 |
| AP/73/2/1 | Unpublished manuscript, 'On lunar periodicities in earthquake frequency' by C G [Cargill Gilston] Knott | 1896 |
| AP/73/2 | Unpublished paper, 'On lunar periodicities in earthquake frequency' by C G [Cargill Gilston] Knott | 1896 |
| NLB/37/323 | Copy letter from Robert William Frederick Harrison to Dr C [Cargill] G [Gilston] Knott, The University, Edinburgh | 2 March 1908 |
| MC/25/155 | Letter from [James Gordon] Macgregor, 24 Darlymple Crescent, Edinburgh, to the [Assistant] Secretary, Royal Society, London | 17 November 1910 |
| MC/31/172 | Letter from [Cargill Gilston] Knott, General Secretary, Royal Society of Edinburgh, 22 George Street, to Robert Harrison, Royal Society, Burlington House, Piccadilly, London | 10 July 1916 |
| MC/31/173 | Letter from [Cargill Gilston] Knott, General Secretary, Royal Society of Edinburgh, 22 George Street, to Robert Harrison, Royal Society, Burlington House, Piccadilly, London | 21 July 1916 |