| Reference number | Title | Date |
| MS/224 | Report on the Neapolitan Earthquake of 1857, by Robert Mallet | 1858 |
| MC/10/367 | Letter from Robert Mallet, Offices, 7 Westminster Chambers, Victoria Street, London, to G G [George Gabriel] Stokes, Secretary of the Royal Society | 13 March 1876 |
| MC/6/109 | Letter from Rob [Robert] Mallet, 97 Chapel Street, Dublin, to C R [Charles Richard] Weld, [Assistant] Secretary of the Royal Society, London | 25 October 1860 |
| MM/19/16 | Letter from Edward Sabine, Treasurer, Royal Society, to William Sharpey, Secretary, Royal Society | 1 January 1858 |
| IM/005367 | Mallet, Robert | 1990 |
| IM/002938 | Physical Features of the Neapolitan Earthquake | 1994 |
| IM/002937 | Report of the Earthquake of 1857 | |
| RR/4/168 | Referee's report by James Challis, on a paper 'Appendix to the account of the earthquake-wave experiments made at Holyhead' by Robert Mallet | 25 June 1862 |
| RR/7/327 | Referee's report by Joseph Prestwich, on a paper 'On the mechanism stromboli' by Robert Mallet | 26 June 1874 |
| RR/7/186 | Referee's report by George Carey Foster, on a paper 'Volcanic energy: an attempt to develop its true origin and cosmical relations' by Robert Mallet | 26 June 1872 |
| RR/7/187 | Referee's report by Andrew Crombie Ramsay, on a paper 'Volcanic energy: an attempt to develop its true origin and cosmical relations' by Robert Mallet | 1872 |
| RR/7/185 | Letter from William John Macquorn Rankine, on a paper 'Volcanic energy: an attempt to develop its true origin and cosmical relations' by Robert Mallet | 3 July 1872 |
| RR/7/388 | Referee's report by Andrew Crombie Ramsay on a paper 'On the origin and mechanism of production of the prismatic (or columnar) structure of basalt' by Robert Mallet | 17 June 1875 |
| MS/426/639 | Copy letter from C R [Charles Richard] Weld, the Assistant Secretary of the Royal Society; to R [Robert] Mallet | 9 July 1858 |
| MS/426/540 | Note of a letter from [the Secretaries of] the Royal Society; to various individuals | 8 May 1855 |
| IM/005368 | Mallet, Robert | nd |
| EC/1854/09 | Mallet, Robert: certificate of election to the Royal Society | |
| RR/7/326 | Referee's report by Mervyn Herbert Nevil Story Maskelyne, on a paper 'Addition to the paper on 'Volcanic energy: an attempt to develop its true origin and cosmical relations'' by Robert Mallet | 30 July 1874 |
| RR/7/387 | Referee's report by Archibald Geikie on a paper 'On the origin and mechanism of production of the prismatic (or columnar) structure of basalt' by Robert Mallet | 21 April 1875 |
| RR/4/167 | Referee's report by Thomas Romney Robinson on a paper 'Account of experiments made at Holyhead (North Wales) to ascertain the transit-velocity of waves, analogous to earthquake waves, through the local rock formations' by Robert Mallet | 26 October 1861 |
| MC/11/94 | Letter from J W [John William] Mallet, University of Virginia, to Walter White, [Assistant Secretary of the Royal Society] | 10 August 1877 |
| RR/4/169 | Referee's report by Thomas Romney Robinson, on a paper 'Appendix to the account of the earthquake-wave experiments made at Holyhead' by Robert Mallet | 20 June 1862 |
| PT/66/7 | Paper, 'Appendix to the account of Holyhead earthquake wave experiments' by [Robert Mallet] | [1862] |
| MC/5/222 | Letter from Robert Mallet, Delville, Glasnevin, Co Dublin, to Colonel [Edward] Sabine, Secretary of the Royal Society | 24 January 1856 |
| MC/5/224 | Letter from Robert Mallet, Delville, Glasnevin, Co Dublin, to Colonel [Edward] Sabine, [Treasurer of the Royal Society] | 6 February 1856 |
| MC/5/225 | Letter from Robert Mallet, Delville, Glasnevin, Co Dublin, to Colonel [Edward] Sabine, Secretary of the Royal Society, Somerset House, London | 6 February 1856 |
| MC/5/226 | Letter from Robert Mallet, Delville, Co Dublin, to Colonel [Edward] Sabine, [Treasurer of the Royal Society] | 11 February 1856 |
| MC/5/228 | Letter from Robert Mallet, Delville, Glasnevin, Co Dublin, to Colonel [Edward] Sabine, [Treasurer of the Royal Society] | 16 February 1856 |
| MC/5/329 | Letter from E Hammond, Foreign Office, to [Lord Wrottesley], President of the Royal Society | 21 January 1858 |
| MC/5 | Volume 5 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1851-1858 |
| MS/225 | Illustrations of the Great Neapolitan Earthquake, by various artists | 1857-1858 |
| MC/6/106 | Letter from Rob [Robert] Mallet, 97 Chapel Street, Dublin, to C R [Charles Richard] Weld, [Assistant] Secretary of the Royal Society, London | 11 October 1860 |
| MC/6/174 | Letter from Rob [Robert] Mallet, The Grove, Clapham Road, to Wm [William] Sharpey, Secretary of the Royal Society | 24 October 1861 |
| MC/6 | Volume 6 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1859-1863 |
| MC/6/311 | Letter from Robert Mallet, Offices, 11 Bridge Street, Westminster, to Professor G G [George Gabriel] Stokes, Secretary of the Royal Society, Burlington House | 26 March 1863 |
| MC/7/16 | Letter from Robert Mallet, The Grove, Clapham Road, London, to General [Edward] Sabine, President of the Royal Society, Burlington House, London | 5 February 1864 |
| MC/7/60 | Letter from Robert Mallet, Offices, 11 Bridge Street, Westminser, to General [Edward] Sabine, [President of the Royal Society] | 22 April 1864 |
| MC/11/364 | Draft letter from Robt [Robert] Mallet, Enmore, The Grove, Clapham Road, to W [William] Spottiswoode, President of the Royal Society, Burlington House | 21 May 1879 |
| MC/7 | Volume 7 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1864-1866 |
| PT/62/7 | Paper, 'Account of the experiments made at Holyhead (North Wales) to ascertain the transit velocity of waves, analogous to earthquake waves through the local rock formations' by Robert Mallet | 15 June 1861 |
| MC/9/374 | Letter from Robert Mallet, Offices, 7 Westminster Chambers, Victoria Street, London | 13 May 1872 |
| MC/9/483 | Letter from Rob [Robert] Mallet, Enmore, The Grove, Clapham Road, W [Walter] White, Assistant Secretary of the Royal Society | 29 January 1873 |
| MC/10/216 | Letter from Robert Mallet, Offices, 7 Westminster Chambers, Victoria Street, London, to G G [George Gabriel] Stokes, Secretary of the Royal Society | 6 February 1875 |
| MC/9 | Volume 9 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1870-June 1873 |
| MC/10/115 | Letter from Robert Mallet, Offices, 7 Westminster Chambers, Victoria Street, London, to G G [George Gbariel] Stokes, Secretary of the Royal Society, London | 1 June 1874 |
| MC/10/173 | Letter from Rob [Robert] Mallet, Offices, 7 Westminster Chambers, Victoria Street, London, to Professor G G [George Gabriel] Stokes, Secretary of the Royal Society | 30 November 1874 |
| MC/10 | Volume 10 of miscellaneous correspondence regarding business matters, sent to the Royal Society | July 1873-1876 |
| MC/11/3 | Letter from Robert Mallet, Enmore, The Grove, Clapham Road, to G G [George Gabriel] Stokes, Secretary of the Royal Society, London | 9 January 1877 |
| MC/11/86 | Letter from J W [John William] Mallet, University of Virginia, to Walter White, [Assistant Secretary of the Royal Society] | 29 June 1877 |
| MC/11/350 | Letter from Robert Mallet, Enmore, The Grove, Clapham Road, to G G [George Gabriel] Stokes, Secretary of the Royal Society | 28 April 1879 |
| MC/11 | Volume 11 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1877-1879 |
| MC/12/218 | Letter from Mary Mallet, Enmore, The Grove, Clapham Road, to [Walter] White, [Assistant Secretary of the Royal Society] | 7 November 1881 |
| MC/12/219 | Letter from Louis C [Claude] Purser, 38 Trinity College, Dublin, to Walter White, [Assistant Secretary of the Royal Society] | 11 November 1881 |
| MC/12 | Volume 12 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1880-1883 |
| RR/7/385 | Referee's report by Charles William Siemens, on a paper 'On the origin and mechanism of production of the prismatic (or columnar) structure of basalt' by Robert Mallet | 20 May 1875 |
| AP/57/1/2 | Unpublished figures, relating to the prismatic or columnar structure of basalt by Robert Mallet | 1875 |
| AP/57/1/1 | Unpublished manuscript, 'On the origin and mechanism of production of the prismatic or columnar structure of basalt' by Robert Mallet | 1874 |
| RR/4/160 | Referee's report by Edward Sabine, on a paper 'Report to the Royal Society of the expedition into the Kingdom of Naples to investigate the circumstances of the earthquake of the 16th December 1857' by Robert Mallet | 26 October 1860 |
| RR/4/161 | Letter from Robert Mallet, on his paper 'Report to the Royal Society of the expedition into the Kingdom of Naples to investigate the circumstances of the earthquake of the 16th December 1857' | 25 October 1860 |
| RR/4/162 | Referee's report by Charles Lyell, on a paper 'Report to the Royal Society of the expedition into the Kingdom of Naples to investigate the circumstances of the earthquake of the 16th December 1857' by Robert Mallet | 5 June 1860 |
| RR/4/163 | Referee's report by Thomas Romney Robinson, on a paper 'Report to the Royal Society of the expedition into the Kingdom of Naples to investigate the circumstances of the earthquake of the 16th December 1857' by Robert Mallet | 7 December 1860 |
| RR/4/164 | Referee's report by William Hopkins, on a paper 'Report to the Royal Society of the expedition into the Kingdom of Naples to investigate the circumstances of the earthquake of the 16th December 1857' by Robert Mallet | 1860 |
| RR/4/165 | Referee's report by John Bennet Lawes, on a paper 'Account of experiments made at Holyhead (North Wales) to ascertain the transit-velocity of waves, analogous to earthquake waves, through the local rock formations' by Robert Mallet | 1 August 1861 |
| RR/4/166 | Referee's report by James Challis on a paper 'Account of experiments made at Holyhead (North Wales) to ascertain the transit-velocity of waves, analogous to earthquake waves, through the local rock formations' by Robert Mallet | 27 July 1861 |
| RR/7/325 | Referee's report by Andrew Crombie Ramsay, on a paper 'Addition to the paper on 'Volcanic energy: an attempt to develop its true origin and cosmical relations' by Robert Mallet | 16 June 1874 |
| RR/7/328 | Referee's report by Charles William Siemens, on a paper 'On the alleged expansion in volume of various substances in passing by refrigeration from the state of liquid fusion to that of solidification' by Robert Mallet | 17 June 1874 |
| RR/7/329 | Referee's report by Charles William Siemens, on a paper 'On the alleged expansion in volume of various substances in passing by refrigeration from the state of liquid fusion to that of solidification' by Robert Mallet | 25 June 1874 |
| RR/7/330 | Referee's report by Frederick Augustus Abel, on a paper 'On the alleged expansion in volume of various substances in passing by refrigeration from the state of liquid fusion to that of solidification' by Robert Mallet | 3 July 1874 |
| RR/7/386 | Referee's report by David Forbes, on a paper 'On the origin and mechanism of production of the prismatic (or columnar) structure of basalt' by Robert Mallet | 13 February 1875 |
| AP/57/1 | Unpublished paper, 'On the origin and mechanism of production of the prismatic or columnar structure of basalt' by Robert Mallet | 1874 |
| MC/17 | Volume 17 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1897-1899 |