| RefNo | Title | Date |
| EC/1928/06 | Farr, Clinton Coleridge: certificate of election to the Royal Society | |
| NLB/52/519 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor Clinton Coleridge Farr, FRS | 5 January 1916 |
| NLB/52/314 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Clinton Coleridge Farr Esquire; Canterbury College, Christchurch, New Zealand | 8 November 1915 |
| NLB/17/63 | Copy letter from Theodore E James, to Professor Horace Lamb, Fellow of the Royal Society | 9 July 1898 |
| NLB/17/54 | Copy letter from Arthur William Rucker, to Clinton Coleridge Farr, [Fellow of the Royal Society] | 8 July 1898 |
| NLB/16/848 | Copy letter from Robert William Frederick Harrison, to R T Glazebrook, Fellow of the Royal Society | 20 June 1898 |
| NLB/17/354 | Copy letter from Robert William Frederick Harrison, to Richard Tetley Glazebrook, Fellow of the Royal Society, 4 Sunnyside, Prince's Park, Liverpool | 17 October 1898 |
| NLB/17/769 | Copy letter from Robert William Frederick Harrison, to Professor Horace Lamb, Fellow of the Royal Society | 19 December 1898 |
| NLB/30/587 | Copy letter from Joseph Larmor, to Clinton Coleridge Farr, [Fellow of the Royal Society] | April 1905 |
| NLB/52/586 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr. Charles Chree, FRS | 25 January 1916 |
| RR/22/51 | Referee's report by Thomas Edward Thorpe, on a paper 'A magnetic survey of the dominion of New Zealand' by Clinton Coleridge Farr | October 1915 |
| RR/65/20 | Second referee's report by George Frederick Charles Searle, on a paper 'Further investigation of the velocity of propagation of light in vacuo in a transverse magnetic field' by C J Banwell and Clinton Coleridge Farr | May 1939 |
| RR/22/50 | Referee's report by Charles Chree, on a paper 'A magnetic survey of the dominion of New Zealand' by Clinton Coleridge Farr | October 1915 |
| RR/38/6 | Referee's report by James Walker, on a paper 'Some physical properties of gas-freed sulphur' by Clinton Coleridge Farr and D B Macleod | January 1928 |
| RR/47/47 | Referee's report by Ernest Rutherford, on a paper 'Velocity of propagation of light in vacuo in a transverse magnetic field' by Clinton Coleridge Farr and C J Banwell | May 1932 |
| RR/47/48 | Referee's report by John Cunningham McLennan, on a paper 'The effect of a transverse magnetic field on the refractive index of imperfectly mixed gases' by Clinton Coleridge Farr and C J Banwell | April 1932 |
| RR/47/46 | Referee's report by John Cunningham McLennan, on a paper 'Velocity of propagation of light in vacuo in a transverse magnetic field' by Clinton Coleridge Farr and C J Banwell | April 1932 |
| NLB/57/338 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr [Charles] Chree, FRS | 21 October 1919 |
| NLB/67/452 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [Charles] Chree, FRS | 22 December 1924 |
| NLB/71/547 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Clinton Coleridge] Farr, FRS | 6 July 1928 |
| NLB/71/622 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Mrs Coleridge Farr, SW1 | 17 August 1928 |
| NLB/72/771 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Clinton Coleridge] Farr, FRS | 11 April 1930 |
| NLB/23/1/842 | Copy letter from Clinton Coleridge Farr, to the President of the Royal Society [William Huggins] | 28 November 1902 |
| RR/65/21 | Referee's report by George Frederick Charles Searle, on a paper 'Further investigation of the velocity of propagation of light in vacuo in a transverse magnetic field' by C J Banwell and Clinton Coleridge Farr | 22 February 1938 |
| NLB/17/419 | Copy letter from Robert William Frederick Harrison, to Professor John Viriamu Jones, Fellow of the Royal Society | 25 October 1898 |
| RR/47/45 | Referee's report by Edward Victor Appleton, on a paper 'Velocity of propagation of light in vacuo in a transverse magnetic field' by Clinton Coleridge Farr and C J Banwell | April 1932 |
| NLB/52 | New Letter Book volume 52, copy letters sent from Royal Society administration | 9 July 1915-8 March 1916 |
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |
| RR/14/48 | Letter from Richard Tetley Glazebrook, to Mr Harrison, regarding a paper 'On some expressions for the radial and axial components of the magnetic force in the interior of solenoids of circular cross-section' by Clinton Coleridge Farr | 2 July 1898 |
| RR/14/49 | Letter from Clinton Coleridge Farr, to Arthur William Rucker, regarding a paper 'On some expressions for the radial and axial components of the magnetic force in the interior of solenoids of circular cross-section' by Clinton Coleridge Farr | 1 September 1898 |
| RR/14/46 | Letter from Horace Lamb, regarding a paper 'On some expressions for the radial and axial components of the magnetic force in the interior of solenoids of circular cross-section' by Clinton Coleridge Farr | 15 June 1898 |
| RR/14/47 | Referee's report by John Viriamu Jones, on a paper 'On some expressions for the radial and axial components of the magnetic force in the interior of solenoids of circular cross-section' by Clinton Coleridge Farr | 20 June 1898 |
| RR/14/50 | Letter from John Viriamu Jones, regarding a paper 'On some expressions for the radial and axial components of the magnetic force in the interior of solenoids of circular cross-section' by Clinton Coleridge Farr | 5 November 1898 |