| Reference number | Title | Date |
| EC/1960/06 | Dewar, Michael James Stewart: certificate of election to the Royal Society | |
| NLB/14/324 | Copy letter from Robert William Frederick Harrison, to Mr Collings | 17 February 1897 |
| RR/15/116 | Referee's report by Michael James Stewart Dewar, on the Bakerian Lecture 'The specific heat of metals and the relation of specific heat to atomic weight. (with an addendum by Prof. Perry)' by Professor William Augustus Tilden | March 1900 |
| RR/70/16 | Referee's report by Harry Work Melville, on a paper 'Studies in polymerization - II. A method for investigating the relation between the molecular weights and intrinsic viscosities of polymers, and its application to polystyrene' by Clement Henry Bamford and Michael James Stewart Dewar | 1947 |
| RR/71/18 | Referee's report by Ronald George Wreyford Norrish, on a paper 'Studies in polymerization - III. The polymerization of methyl methacrylate' by Clement Henry Bamford and Michael James Stewart Dewar | [1948] |
| RR/69/9 | Referee's report by Harry Work Melville, on a paper 'Studies in polymerization. I. A method for determining the velocity constants in polymerization reactions and its application to styrene' by Clement Henry Bamford and Michael James Stewart Dewar | January 1947 |
| RR/71/17 | Referee's report by Eric Keightley Rideal, on a paper 'The autoxidation of tetralin' by Clement Henry Bamford and Michael James Stewart Dewar | [1948] |
| RR/71/20 | Letter from Harry Work Melville, to David Christie Martin, regarding a paper 'Studies in polymerization - III. The polymerization of methyl methacrylate' by Clement Henry Bamford and Michael James Stewart Dewar | 29 November 1948 |
| RR/71/19 | Referee's report by Harry Work Melville, on a paper 'Studies in polymerization - III. The polymerization of methyl methacrylate' by Clement Henry Bamford and Michael James Stewart Dewar | [1948] |
| RR/75/262 | Referee's report by Douglas Rayner Hartree, on a paper 'The correspondence between the resonance and molecular orbital theories' by Michael James Stewart Dewar and Hugh Christopher Longuet-Higgins | 12 October 1951 |
| RR/75/263 | Referee's report by William George Penney, on a paper 'The correspondence between the resonance and molecular orbital theories' by Michael James Stewart Dewar and Hugh Christopher Longuet-Higgins | 2 November 1951 |
| RR/75/264 | Letter from Meredith Gwynne Evans, on a paper 'The correspondence between the resonance and molecular orbital theories' by Michael James Stewart Dewar and Hugh Christopher Longuet-Higgins, to D C Martin | 19 February 1951 |
| MDA/N/1/123 | Correspondence between Michael James Steuart Dewar and the Royal Society | 24 March 1960-19 April 1961 |