| RefNo | Title | Date |
| IM/004767 | Walker, Sir James | nd |
| IM/004766 | Walker, Sir James | nd |
| NLB/40/696 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 20 July 1909 |
| RR/16/150 | Referee's report by James Walker, on a paper 'The electrical conductivity and other properties of Sodium Hydroxide in aqueous solution as elucidating the mechanism of conduction' by William Robert Bousfield and Thomas Martin Lowry | 4 July 1904 |
| RR/15/261 | Referee's report by James Walker, on a paper 'The measurement of ionic velocities' by Bertram Dillon Steele | June 1901 |
| RR/17/211 | Referee's report by James Walker, on a paper 'The decomposition of ozone by heat' by Edgar Philip Perman and Richard Henry Greaves | [February 1908] |
| RR/17/130 | Referee's report by James Walker, on a paper 'The heats of formation of ions in aqueous solutions' by William Robert Bousfield | 21 January 1907 |
| RR/38/123 | Referee's report by James Walker, on a paper 'An investigation of the combustion of platinum' by Eric Keightley Rideal and O H Wansbrough-Jones | January 1929 |
| RR/17/365 | Referee's report by James Walker, on a paper 'Studies of the processes operative in solutions, XI - the displacement of salts from solution by various precipitants' by Henry Edward Armstrong and J V Eyre | July 1909 |
| NLB/23/2/444 | Copy letter sent from Joseph Larmor, to Professor James Walker, Fellow of the Royal Society | 24 February 1904 |
| NLB/20/710 | Copy letter from Theodore E James, to Messrs Harrison & Sons | 22 June 1900 |
| NLB/20/713 | Copy letter from Robert William Frederick Harrison, to Professor James Walker, Fellow of the Royal Society | 22 June 1900 |
| NLB/33/306 | Copy letter from Robert William Frederick Harrison, to Professor James Walker, Fellow of the Royal Society, Holmsdene, Woolacombe, Devon | 1 August 1906 |
| NLB/39/19 | Copy letter from Robert William Frederick Harrison to Harrison & Sons | 14 November 1908 |
| RR/17/124 | Referee's report by James Walker, on a paper 'On the polymorphic changes of ammonium nitrate' by U Behn | [September 1907] |
| RR/27/73 | Referee's report by James Walker, on a paper 'The significance of the electrode potential' by Jaroslav Heyrovský | November 1922 |
| RR/27/56 | Referee's report by James Walker, on a paper 'The system: Na2O—CO2—NaCl—H2O, considered as two four- component systems' by Francis Arthur Freeth | March 1922 |
| RR/42/75 | Referee's report by James Walker, on a paper 'Geometrical inversion in light' by Bhadramukh K Vaidya | July 1930 |
| RR/43/79 | Referee's report by James Walker, on a paper 'The conductivity of electrolytes in acetone' by N L Ross Kane and Harold Hartley | September 1931 |
| RR/35/82 | Referee's report by James Walker, on a paper 'Sorption of ammonia by glass' by M Francis and F P Burt | June 1927 |
| RR/37/126 | Referee's report by James Walker, on a paper 'Equilibrium in the system methyl alcohol-hydrogen-carbonic oxide' by D M Newitt, B J Byrne and H W Strong | January 1929 |
| 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/40/38 | Referee's report by James Walker, on a paper 'The influence of hydrogen ion concentration on the adsorption of weak electrolytes by pure charcoals' by Harold John Phelps and Rudolph Albert Peters | 1929 |
| RR/28/55 | Referee's report by James Walker, on a paper 'The origin of osmotic effects. IV.—Hydronodynamic change in aqueous solutions' by Henry Edward Armstrong | [May 1923] |
| NLB/63/529 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir James Walker, FRS | 03 November 1922 |
| NLB/66/757 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir James Walker, FRS | 4 July 1924 |
| NLB/66/80 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir James Walker, FRS | 18 February 1924 |
| NLB/66/792 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir James Walker, FRS | 10 July 1924 |
| NLB/67/603 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir James Walker, FRS | 28 January 1925 |
| NLB/67/527 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir James Walker, FRS | 15 January 1925 |
| NLB/69/872 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir James Walker, FRS | 4 November 1926 |
| NLB/66/779 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to James Walker, FRS | 7 July 1924 |
| NLB/70/793 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir James Walker, FRS | 26 September 1927 |
| NLB/70/604 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir James Walker, FRS | 2 June 1927 |
| NLB/69/696 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Frederick George] Donnan, FRS | 29 July 1926 |
| NLB/71/407 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir James Walker, FRS | 3 May 1928 |
| NLB/71/460 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir James Walker, Vice President of the Royal Society | 31 May 1928 |
| NLB/71/655 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir James Walker, FRS | 26 September 1928 |
| NLB/65/823 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Lord Rayleigh [Robert John Strutt], FRS | 11 January 1924 |
| EC/1900/15 | Walker, Sir James: certificate of election to the Royal Society | |
| RR/19/18 | Referee's report by James Walker, on a paper 'Ionic size in relation to molecular physics, together with a new law relating to the heats of formation of solid, liquid, and ionic molecules' by William Robert Bousfield | [December 1912] |
| RR/28/8 | Referee's report by James Walker, on two papers 'The photo-chemistry of potassium permanganate. Part I.—Application of the potentiometer to the study of photo-chemical change' and 'The photo-chemistry of potassium permanganate.-Part II. On the energetics of the photo-decomposition of potassium permanganate' by Eric Keightley Rideal and Ronald George Wreyford Norrish | [August 1922] |
| RR/30/70 | Referee's report by James Walker, on a paper 'A note on the significance of the electrode potential' by Jaroslav Heyrovsky | 1 March 1924 |
| NLB/36/322 | Copy letter from Robert William Frederick Harrison, to Professor Arthur Schuster, Chairman of the Physics and Chemistry Sectional Committee | 10 October 1907 |
| NLB/66/878 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [Robert John Strutt] Lord Rayleigh, FRS | 1 August 1924 |
| NLB/65/766 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Lord Rayleigh [Robert John Strutt], FRS | 21 December 1923 |
| NLB/66/54 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [Robert John Strutt] Lord Rayleigh, FRS | 14 February 1924 |
| RR/28/57 | Referee's report by James Walker, on a paper 'Electrolytic conduction: sequel to an attempt (1886) to apply a theory of residual affinity' by Henry Edward Armstrong | [May 1923] |
| RR/19/7 | Referee's report by James Walker, on a paper 'Studies on the processes operative in solutions (XXX) and on enzyme action (XX).—The nature of enzymes and of their action as hydrolytic agents' by Henry Edward Armstrong and Edward Frankland Armstrong | [October 1912] |
| RR/28/103 | Referee's report by James Walker, on a paper 'The electrode potentials and the energy of solvation' by Jaroslav Heyrovsky | [January 1924] |
| RR/39/8 | Referee's report by James Walker, on a paper 'The swelling of charcoal. Part I.—Preliminary experiments with water vapour, carbon dioxide, ammonia, and sulphur dioxide' by D H Bangham and Nazim Fakhoury | [October 1929] |
| RR/39/19 | Referee's report by James Walker, on a paper 'The density of the vapours in equilibrium with water, ethyl alcohol, methyl alcohol and benzene' by Randal Thomas Mowbray Rawdon Berkeley and E Stenhouse | [December 1929] |