| RefNo | Title | Date |
| MM/19/77 | Letter from Joseph Henry Gilbert to William Sharpey | 25 November 1872 |
| MS/373/1/119 | Testimonial by Joseph Henry Gilbert, Harpenden, St Albans, supporting Thomas Edward Thorpe | April 1874 |
| IM/Maull/001651 | Gilbert, Sir Joseph Henry | nd |
| NLB/2/418 | Copy letter from Herbert Rix, to Dr Arthur Gamgee, Fellow of the Royal Society | 13 June 1888 |
| NLB/2/705 | Copy letter from Herbert Rix, to Dr [Joseph Henry] Gilbert, Fellow of the Royal Society | 15 October 1888 |
| NLB/2/693 | Copy letter from Herbert Rix, to Dr Joseph Henry Gilbert, Fellow of the Royal Society | 12 October 1888 |
| NLB/2/930 | Copy letter from Herbert Rix, to Dr Joseph Henry Gilbert, Fellow of the Royal Society | 2 January 1889 |
| NLB/3/463 | Copy letter from Herbert Rix, to Dr [Joseph Henry] Gilbert, Fellow of the Royal Society | 17 June 1889 |
| NLB/8/259 | Copy letter from Theodore E James, to Messrs Harrison & Sons | 5 September 1893 |
| NLB/11/289 | Copy letter from Herbert Rix, to Sir Joseph Henry Gilbert | 28 May 1895 |
| NLB/8/10 | Copy letter from Herbert Rix, to Dr Joseph Henry Gilbert, Fellow of the Royal Society | 29 June 1893 |
| NLB/10/846 | Copy letter from Herbert Rix, to Sir Joseph Henry Gilbert, Fellow of the Royal Society | 19 February 1895 |
| NLB/10/763 | Copy letter from Herbert Rix, to Sir Joseph Henry Gilbert, Fellow of the Royal Society | 1 February 1895 |
| NLB/9/441 | Copy letter from Herbert Rix, to Sir Henry Gilbert, Fellow of the Royal Society | 18 May 1894 |
| NLB/11/870 | Copy letter from Herbert Rix, to Sir Joseph Henry Gilbert, Fellow of the Royal Society | 22 October 1895 |
| NLB/15/488 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Henry Gilbert, Fellow of the Royal Society | 13 October 1897 |
| NLB/19/336 | Copy letter from Theodore E James, to Horace Tabberer Brown, Fellow of the Royal Society | 10 August 1899 |
| NLB/19/323 | Copy letter from Michael Foster, to Sir John Henry Gilbert, [Fellow of the Royal Society] | 1 August 1899 |
| NLB/19/391 | Copy letter from Theodore E James, to Sir Michael Foster, Secretary, Royal Society | 13 September 1899 |
| NLB/19/382 | Copy letter from Theodore E James, to Sir Joseph Henry Gilbert, Fellow of the Royal Society | 9 September 1899 |
| NLB/19/378 | Copy letter from Theodore E James, to Dr Dukinfield Henry Scott, Fellow of the Royal Society | 8 September 1899 |
| NLB/19/510 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Henry Gilbert, Fellow of the Royal Society, Harpenden | 19 October 1899 |
| NLB/19/666 | Copy letter from Michael Foster, to Sir John Bennett Lawes and Sir Joseph Henry Gilbert, [Fellows of the Royal Society] | 20 November 1899 |
| NLB/19/868 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Henry Gilbert, Fellow of the Royal Society | 10 January 1900 |
| NLB/20/5 | Copy letter from Robert William Frederick Harrison, to Sir Michael Foster, [Fellow of the Royal Society] | 12 January 1900 |
| NLB/20/328 | Copy letter from Arthur William Rucker, to Sir John Bennet Lawes, and Sir Joseph Henry Gilbert, Fellows of the Royal Society | 23 March 1900 |
| RR/7/12 | Referee's report by Joseph Henry Gilbert, on a paper 'Chemical and physiological experiments on living cinchoncoe' by J Broughton | 9 July 1870 |
| RR/6/33 | Referee's report by Joseph Henry Gilbert, on a paper 'On a certain excretion of carbonic acid by living plants' by J Broughton | 26 July 1869 |
| RR/10/299 | Referee's report by Joseph Henry Gilbert, on a paper 'The chemistry of the urine of the horse' by Fred Smith | 18 December 1888 |
| MC/16/23 | Letter from [Joseph Henry] Gilbert, Harpenden, St Albans, to John Evans | 22 March 1893 |
| RR/4/234 | Referee's report by Joseph Henry Gilbert, on a paper 'Experiments on food; its destination and uses' by William Scovell Savory | 8 July 1862 |
| RR/9/109 | Referee's report by Joseph Henry Gilbert, on a paper 'Contributions to the chemistry of food' by James Bell | 12 December 1883 |
| MC/12/69 | Letter from J H [Joseph Henry] Gilbert, Harpenden, St Albans, to the Secretary of the Royal Society | 16 June 1880 |
| EC/1860/11 | Gilbert, Sir Joseph Henry: certificate of election to the Royal Society | |
| NLB/3/1063 | Copy letter from Herbert Rix, to [John William Strutt] the Lord Rayleigh, [Royal Society] | 3 January 1890 |
| NLB/6/886 | Copy letter from Herbert Rix, to Dr Armstrong, Fellow of the Royal Society | 30 July 1892 |
| NLB/8/163 | Copy letter from Lord Kelvin [William Thomson], to Joseph Henry Gilbert, Fellow of the Royal Society | [24 July 1893] |
| RR/5/151 | Referee's report by Joseph Henry Gilbert, on a paper 'On the amyloid substance of the liver, and its ultimate destination in the animal economy' by Robert McDonnell | 21 May 1863 |
| RR/10/186 | Referee's report by Hugo Muller, on a paper 'On the present position of the question of the sources of the nitrogen of vegetation, with some new results, and preliminary notice of new lines of investigation' by John Bennet Lawes and Joseph Henry Gilbert | 28 June 1888 |
| RR/9/59 | Referee's report by Joseph Dalton Hooker and William Turner Thiselton-Dyer, on a paper 'Agricultural, botanical, and chemical results of experiments on the mixed herbage of permanent meadow, conducted for more than twenty years in succession on the same land. — Part. II. The botanical results' by John Bennet Lawes, J H Gilbert and Maxwell Tylden Masters | 16 March 1882 |
| RR/14/189 | Referee's report by Joseph Reynolds Green, on a paper 'Agricultural, botanical, and chemical results of experiments on the mixed herbage of permanent grass-land, conducted for many years in succession on the same land.—Part III. The chemical results' by John Bennet Lawes and Joseph Henry Gilbert | nd [August 1899] |
| PT/62/3/3 | Plate, 'Apparatus used in 1857, in experiments on the question whether plants assimilate free nitrogen' by unknown artist | [1860] |
| RR/3/173 | Referee's report by William Benjamin Carpenter, on a paper 'Experimental inquiry into the composition of some of the animals fed and slaughtered as human food' by John Bennet Lawes and Joseph Henry Gilbert | 28 October 1858 |
| PT/62/3/4 | Plate, 'Apparatus used in 1858, in experiments on the question whether plants assimilate free nitrogen' by unknown artist | [1860] |
| PT/62/3/7 | Plate, figures 14-17 showing growth of roots of plants by unknown artist | [1860] |
| PT/62/3/6 | Plate, 'Graminaceous plants, supplied with known and limited quantities, of combined nitrogen, beyond that contained in the original seed' by unknown artist | [1860] |
| PT/62/3/2 | Plate, figures 1-9 showing plant pots, pans, and stoneware lutes and an apparatus for decomposition of nitrogenous organic matter by unknown artist | [1860] |
| PT/62/3/1 | Manuscript, 'On the sources of nitrogen of vegetation; with special reference to the question whether plants can assimilate free or uncombined nitrogen' by John Bennet Lawes, Joseph Henry Gilbert, and Evan Pugh | [1860] |
| RR/4/153 | Referee's report by William Benjamin Carpenter, on a paper 'On the sources of the nitrogen of vegetation; with special reference to the question whether plants assimilate free or uncombined nitrogen' by John Bennet Lawes, Joseph Henry Gilbert and Evan Pugh | 16 August 1860 |
| PT/62/3/5 | Plate, 'Graminaceous plants grown without any other supply of combined nitrogen than that contained in the original seed' by unknown artist | [1860] |
| PT/62/3 | Paper, 'On the sources of nitrogen of vegetation; with special reference to the question whether plants can assimilate free or uncombined nitrogen' by John Bennet Lawes, Joseph Henry Gilbert, and Evan Pugh | [1860] |
| MC/6 | Volume 6 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1859-1863 |
| MC/6/315 | Letter from Mr Oldbury [?], Honorary Secretary of the Chemical Society, Burlington House, to Dr [William] Sharpey, Secretary of the Royal Society | 10 April 1863 |
| MC/8/109 | Letter from J H [Joseph Henry] Gilbert, Harpenden, St Albans, to Dr [William] Sharpey, Secretary of the Royal Society | 14 November 1867 |
| RR/8/230 | Referee's report by William Turner Thiselton-Dyer, on a paper 'Agricultural, botanical, and chemical results of experiments on the mixed herbage of permanent meadow, conducted for more than twenty years in succession on the same land. — Part. II. The botanical results' by John Bennet Lawes, Joseph Henry Gilbert and Maxwell Tylden Masters | 28 October 1880 |
| MC/12 | Volume 12 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1880-1883 |
| MC/8 | Volume 8 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1867-1869 |
| PP/12/5 | Paper, 'On the occurrence of aluminium in certain vascular cryptogams' by Arthur Herbert Church | 1888 |
| PP/15/9 | Paper, 'New experiments on the question of the fixation of free nitrogen. (Preliminary notice.)' by John Bennet Lawes and Joseph Henry Gilbert | [1889-1890] |
| RR/5/129 | Letter from Joseph Henry Gilbert, to George Gabriel Stokes, regarding a paper 'On the amyloid substance of the liver, and its ultimate destination in the animal economy' by Robert McDonnell | 29 June 1863 |
| RR/4/152 | Referee's report by Lyon Playfair, on a paper 'On the sources of the nitrogen of vegetation; with special reference to the question whether plants assimilate free or uncombined nitrogen' by John Bennet Lawes, Joseph Henry Gilbert and Evan Pugh | 25 January 1859 |
| RR/4/233 | Letter from Joseph Henry Gilbert, on a paper 'Experiments on food; its destination and uses' by William Scovell Savory to The Royal Society | 11 July 1862 |
| RR/8/166bis | Referee's report by John Christopher Augustus Voelcker, on a paper 'Agricultural, botanical, and chemical results of experiments on the mixed herbage of permanent meadow, conducted for more than twenty years in succession on the same land.—Part I' by John Bennet Lawes and Joseph Henry Gilbert | 15 August 1879 |
| RR/8/167 | Letter from Joseph Henry Gilbert, to George Gabriel Stokes, regarding a paper 'Agricultural, botanical, and chemical results of experiments on the mixed herbage of permanent meadow, conducted for more than twenty years in succession on the same land.—Part I' by John Bennet Lawes and Joseph Henry Gilbert | 18 November 1879 |
| RR/9/60 | Letter from Joseph Henry Gilbert, on his paper 'Agricultural, botanical, and chemical results of experiments on the mixed herbage of permanent meadow, conducted for more than twenty years in succession on the same land. — Part. II. The botanical results' by himself, John Bennet Lawes and Maxwell Tylden Masters to Joseph Dalton Hooker and William Turner Thiselton-Dyer | 3 May 1882 |
| RR/9/156 | Referee's report by John Christopher Augustus Voelcker, on a paper 'Supplement to former paper, entitled—"Experimental inquiry into the composition of some of the animals fed and slaughtered as human food.”—Composition of the ash of the entire animals, and of certain separated parts' by John Bennet Lawes and Joseph Henry Gilbert | 23 July 1883 |
| RR/9/157 | Referee's report by Arthur Gamgee, on a paper 'Supplement to former paper, entitled—"Experimental inquiry into the composition of some of the animals fed and slaughtered as human food.”—Composition of the ash of the entire animals, and of certain separated parts' by John Bennet Lawes and Joseph Henry Gilbert | 20 October 1883 |
| RR/10/43 | Referee's report by Joseph Henry Gilbert, on a paper 'On the changes in the proteids in the seed which accompany germination' by Joseph Reynolds Green | 19 January 1887 |
| RR/10/185 | Referee's report by Sydney Howard Vines, on a paper 'On the present position of the question of the sources of the nitrogen of vegetation, with some new results, and preliminary notice of new lines of investigation' by John Bennet Lawes and Joseph Henry Gilbert | 7 June 1888 |
| RR/14/188 | Referee's report by Horace Tabberer Brown, on a paper 'Agricultural, botanical, and chemical results of experiments on the mixed herbage of permanent grass-land, conducted for many years in succession on the same land.—Part III. The chemical results' by John Bennet Lawes and Joseph Henry Gilbert | 15 August 1899 |
| MC/16 | Volume 16 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1893-1896 |