| RefNo | Title | Date |
| MM/18/140 | Letter from Albert Charles Seward, Downing College, Cambridge | 19 August 1922 |
| NLB/66/880 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof [Albert Charles] Seward, FRS | 5 August 1924 |
| MDA/A/22/31 | Copy letter from Albert Charles Seward to Sir Stephen Gaselee | 10 July 1937 |
| NLB/41/271 | Copy letter from John Rose Bradford, to Professor Albert Charles Seward, Fellow of the Royal Society | 11 November 1909 |
| MDA/A/22/21 | Circular from Raymond Vaufrey to Albert Charles Seward, Paris | 15 May 1936 |
| MDA/A/22/20 | Letter from Raymond Vaufrey to Albert Charles Seward, Paris | 15 May 1936 |
| MDA/A/22/24 | Letter from Albert Charles Seward to [Ronald] Winckworth [Assistant Secretary of the Royal Society], The Master's Lodge, Downing College, Cambridge | 18 August 1936 |
| MDA/A/22/27 | Copy letter from [Ronald Winckworth] Assistant Secretary of the Royal Society to Albert Charles Seward | 6 October 1936 |
| MDA/A/22/18 | Letter from Albert Charles Seward to [Ronald Winckworth] Assistant Secretary of the Royal Society, Botany School Cambridge | 5 June 1936 |
| RR/15/203 | Referee's report by Albert Charles Seward, on a paper 'The structure & development of the stem in the pteridophyla amd gymnosperms' by Edward C Jeffrey | 23 July 1901 |
| RR/15/249 | Referee's report by Albert Charles Seward, on a paper 'The structure and affinities of fossil plants from the palaeozoic rocks. IV.- The seed-like fructification of lepidocarpon, a genus of lycopodiaceous cones from the carboniferous formation' by Dukinfield Henry Scott | March 1901 |
| MDA/A/22/14 | Copy letter from [Ronald Winckworth] Assistant Secretary of the Royal Society to Albert Charles Seward | 6 May 1936 |
| RR/15/253 | Referee's report by Dukinfield Henry Scott, on a paper 'The structure and affinities of dipteris, with notes on the geological history of the dipteridinae' by Albert Charles Seward and Elizabeth Dale | 5 June 1901 |
| NLB/65 | New Letter Book volume 65, copy letters sent from Royal Society administration | 12 July 1923-31 January 1924 |
| NLB/36/603 | Copy letter from Robert William Frederick Harrison, to Professor Weiss, University of Manchester | 19 November 1907 |
| MDA/A/22/33 | Copy letter from John David Griffith Davies, Assistant Secretary of Royal Society to Albert Charles Seward | 11 September 1937 |
| MDA/A/22/16 | Copy letter from [Ronald Winckworth] Assistant Secretary of the Royal Society to Albert Charles Seward | 25 May 1936 |
| RR/16/74 | Referee's report by Albert Charles Seward, on a paper 'The fructification of Neuropteris heterophylla' by Robert Kidston | December 1903 |
| RR/16/384 | Letter from Robert William Harrison to Dukinfield Henry Scott, in reference to a paper 'The araucarieae, recent and extinct' by Albert Charles Seward and Sibille O Ford | 31 January 1906 |
| RR/16/383 | Referee's report by Maxwell Tylden Masters, on a paper 'The araucarieae, recent and extinct' by Albert Charles Seward and Miss Sibille O Ford | January 1906 |
| NLB/17/563 | Copy letter from an unknown correspondent, to Messrs Harrison | 19 November 1898 |
| NLB/18/803 | Copy letter from Robert William Frederick Harrison, to A C Seward, Fellow of the Royal Society | [16 May 1899] |
| NLB/18/65 | Copy letter from Robert William Frederick Harrison, to A C Seward, Fellow of the Royal Society, Westfield, Huntingdon Road, Cambridge | 9 January 1899 |
| NLB/16/596 | Copy letter of a notice from Robert William Frederick Harrison, to [The Times] | 5 May 1898 |
| NLB/16/833 | Copy letter from Robert William Frederick Harrison, to A C Seward, Fellow of the Royal Society | 17 June 1898 |
| NLB/18/589 | Copy letter from Robert William Frederick Harrison, to Dr D H Scott, Fellow of the Royal Society | 6 April 1899 |
| NLB/52/338 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Messrs Harrison & Sons | 12 November 1915 |
| NLB/19/210 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 13 July 1899 |
| NLB/19/325 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 5 August 1899 |
| NLB/18/366 | Copy letter from Robert William Frederick Harrison, to A C Seward, Fellow of the Royal Society, Westfield, Huntingdon Road, Cambridge | 28 February 1899 |
| NLB/19/841 | Copy letter from Robert William Frederick Harrison, to Messrs Harrison & Sons | 6 January 1900 |
| NLB/18/636 | Copy letter from Robert William Frederick Harrison, to A C Seward, Fellow of the Royal Society | 13 April 1899 |
| NLB/18/843 | Copy letter from Robert William Frederick Harrison, to A C Seward, Fellow of the Royal Society | 30 May 1899 |
| NLB/19/618 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 10 November 1899 |
| NLB/22/832 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 27 July 1901 |
| NLB/22/587 | Copy letter from Robert William Frederick Harrison, to [Albert Charles] Seward, Fellow of the Royal Society | 10 June 1901 |
| NLB/22/473 | Copy letter from Robert William Frederick Harrison, to [Albert Charles] Seward, Fellow of the Royal Society, Emmanuel College, Cambridge | 21 May 1901 |
| MDA/A/22/23 | Copy letter from Albert Charles Seward to [Raymond Vaufrey], le Secretaire du Comite d'Honneur | 2 July 1936 |
| NLB/23/2/108 | Copy letter from Arthur William Rucker, to Albert Charles Seward, Fellow of the Royal Society and Miss Elizabeth Dale | 9 July 1901 |
| MDA/A/22/19 | Copy letter from [Ronald Winckworth] Assistant Secretary of the Royal Society to Albert Charles Seward | 6 June 1936 |
| MDA/A/22/25 | Letter from Albert Charles Seward to Ronald Winckworth [Assistant Secretary of the Royal Society], The Royal Society, Burlington House, London, W. | 21 August 1936 |
| MDA/A/22/29 | Copy letter from Albert Charles Seward to Director, Technisches Museum, Wien [Vienna] | 28 June 1937 |
| NLB/54/130 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir [Jethro Justinian Harris] Teall, FRS | 13 February 1917 |
| NLB/26/400 | Copy letter from Robert William Frederick Harrison to, Albert Charles Seward, Fellow of the Royal Society | 13 March 1903 |
| NLB/28/525 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 24 March 1904 |
| NLB/32/376 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 1 March 1906 |
| NLB/31/578 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 13 October 1905 |
| NLB/31/878 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 29 November 1905 |
| NLB/31/681 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, [Fellow of the Royal Society] | 31 October 1905 |
| MDA/A/22 | Correspondence of Albert Charles Seward, Foreign Secretary | 1932-1941 |
| MDA/A/22/15 | Letter from Albert Charles Seward to Ronald Winckworth [Assistant Secretary of the Royal Society], The Royal Society, Burlington House, London, W.1. | 22 May 1936 |
| NLB/31/811 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 17 November 1905 |
| NLB/32/269 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 9 February 1906 |
| NLB/32/333 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 21 February 1906 |
| NLB/32/425 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 8 March 1906 |
| NLB/32/732 | Copy letter from Robert William Frederick Harrison, to Albert Charles Seward, Fellow of the Royal Society | 18 May 1906 |
| NLB/34/468 | Copy letter from Archibald Geikie, to Professor Albert Charles Seward, Fellow of the Royal Society | 28 January 1907 |
| NLB/35/12 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society, Chairman of the Botany Sectional Committee | 27 March 1907 |
| NLB/37/450 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward, Fellow of the Royal Society, Botany School, Cambridge | 23 March 1908 |
| NLB/36/89 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society, Chairman of the Botany Sectional Committee | 8 August 1907 |
| NLB/35/159 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 26 April 1907 |
| NLB/35/172 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 26 April 1907 |
| NLB/34/638 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 19 February 1907 |
| NLB/35/278 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society, Chairman of the Botany Sectional Committee | 10 May 1907 |
| NLB/35/315 | Copy letter from Robert William Frederick Harrison, to Francis Darwin, Secretary, Royal Society | 14 May 1907 |
| NLB/34/361 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society, Chairman of the Botany Sectional Committee | 9 January 1907 |
| NLB/35/480 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 4 June 1907 |
| NLB/34/660 | Copy letter from Archibald Geikie, to Professor Albert Charles Seward, Fellow of the Royal Society | 23 February 1907 |
| NLB/34/695 | Copy letter from Archibald Geikie, to Professor [Albert Charles] Seward, [Fellow of the Royal Society] | 27 February 1907 |
| NLB/34/466 | Copy letter from Archibald Geikie, to Professor Albert Charles Seward, Fellow of the Royal Society | 26 January 1907 |
| NLB/34/464 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 26 January 1907 |
| NLB/34/511 | Copy letter from Archibald Geikie, to [Professor Albert Charles] Seward, [Fellow of the Royal Society] | 1 February 1907 |
| NLB/34/543 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 5 February 1907 |
| NLB/37/653 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward, Fellow of the Royal Society | 27 April 1908 |
| NLB/36/321 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 10 October 1907 |
| NLB/34/765 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 6 March 1907 |
| NLB/34/766 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 6 March 1907 |
| NLB/36/334 | Copy letter from Robert William Frederick Harrison, to Aubrey Strahan, Fellow of the Royal Society, Chairman of the Geology Sectional Committee | 14 October 1907 |
| NLB/36/396 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society, Chairman of the Botany Sectional Committee | 25 October 1907 |
| NLB/34/806 | Copy letter from Archibald Geikie, to Professor Albert Charles Seward, Fellow of the Royal Society | 12 March 1907 |
| NLB/36/631 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society and Chairman of the Botany Sectional Committee | 22 November 1907 |
| NLB/37/211 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 14 February 1908 |
| NLB/36/672 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society, Chairman of the Botany Sectional Committee | 25 November 1907 |
| NLB/36/746 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 11 December 1907 |
| NLB/36/776 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 13 December 1907 |
| NLB/36/769 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 12 December 1907 |
| NLB/39/743 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward, Fellow of the Royal Society | 4 March 1909 |
| NLB/39/569 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward, Fellow of the Royal Society | 8 February 1909 |
| NLB/39/756 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward, Fellow of the Royal Society | 6 March 1909 |
| NLB/40/140 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 23 April 1909 |
| NLB/38/484 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles, Fellow of the Royal Society | 10 August 1908 |
| NLB/40/143 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 23 April 1909 |
| NLB/40/278 | Copy letter from The Royal Society to Professor [Albert Charles] Seward, Botany School, Cambridge | May 1909 |
| NLB/40/160 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 26 April 1909 |
| NLB/61/546 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 26 July 1921 |
| NLB/40/667 | Copy letter from Robert William Frederick Harrison to Dr A [Arthur] S [Smith] Woodward FRS | 15 July 1909 |
| NLB/40/470 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 11 June 1909 |
| NLB/40/430 | Copy letter from Robert William Frederick Harrison to Sir [Edwin] Ray Lankester | 7 June 1909 |
| NLB/41/202 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 29 October 1909 |
| NLB/48/311 | Copy letter from Robert William Frederick Harrison, to Professor [Albert Charles] Seward, Fellow of the Royal Society | 13 June 1913 |
| NLB/38/768 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 3 November 1908 |
| NLB/42/368 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 30 May 1910 |
| NLB/41/233 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 5 November 1909 |
| NLB/41/648 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 28 January 1910 |
| NLB/42/712 | Copy letter from Robert William Frederick Harrison to Professor [Albert Charles] Seward FRS | 9 September 1910 |
| NLB/41/429 | Copy letter from John Rose Bradford, to Professor Albert Charles Seward, Fellow of the Royal Society | 13 December 1909 |
| NLB/41/699 | Copy letter from John Rose Bradford, to Professor Albert Charles Seward, Fellow of the Royal Society | 8 February 1910 |
| NLB/46/332 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 11 July 1912 |
| NLB/46/7 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 21 May 1912 |
| NLB/46/316 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 10 July 1912 |
| NLB/46/249 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 1 July 1912 |
| NLB/45/723 | Copy letter from Robert William Frederick Harrison to Prof A [Albert] C [Charles] Seward FRS | 29 April 1912 |
| NLB/45/722 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 29 April 1912 |
| NLB/46/417 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 29 July 1912 |
| NLB/45/790 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 10 May 1912 |
| NLB/46/635 | Copy letter from Henry George Lyons, to Dr Charles William Andrews, Alfred Harker, Dr George Jennings Hinde, Clement Reid, Professor Albert Charles Seward, Professor William Whitehead Watts, Captain Thomas Henry Tizard, Professor John Walter Gregory | 7 October 1912 |
| NLB/46/757 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 30 October 1912 |
| NLB/48/583 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 31 July 1913 |
| NLB/47/341 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 20 January 1913 |
| NLB/47/484 | Copy letter from Robert William Frederick Harrison to Professor [Albert Charles] Seward FRS | 7 February 1913 |
| NLB/47/616 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 4 March 1913 |
| NLB/47/540 | Copy letter from Robert William Frederick Harrison to Professor [Albert Charles] Seward | 16 February 1913 |
| NLB/48/537 | Copy letter from Robert William Frederick Harrison, to Professor [Albert Charles] Seward, Fellow of the Royal Society | 23 July 1913 |
| NLB/48/622 | Copy letter from unknown correspondent, to Professor [Albert Charles] Seward, Fellow of the Royal Society | 11 August 1913 |
| NLB/52/337 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Professor Albert Charles Seward, FRS | 12 November 1915 |
| MS/928/2/147 | Letter from Albert Charles Seward, The Master's Lodge, Downing College, Cambridge, to Charles Vernon Boys | 30 October 1928 |
| RR/17/237 | Referee's report by Albert Charles Seward, on a paper 'The inheritance of flower colour in Antirrhinum majus' by Miss M Wheldale | 16 February 1907 |
| NLB/54/89 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 5 February 1917 |
| NLB/54/392 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, Chairman of Government Grant Board E and FRS | 2 May 1917 |
| NLB/54/368 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 25 April 1917 |
| NLB/54/326 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, Chairman of Government Grant Board E and FRS | 5 April 1917 |
| NLB/63/879 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 16 January 1923 |
| NLB/66/856 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Albert Charles] Seward, FRS | 29 July 1924 |
| NLB/53/95 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 10 April 1916 |
| NLB/55/196 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, Chairman of the Botany Committee and FRS | 09 January 1918 |
| RR/21/63 | Referee's report by Albert Charles Seward, on a paper 'Fossil micro-organisms from the Jurassic and Cretaceous rocks of Great Britain' by David Ellis | [March 1914] |
| NLB/69/177 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Frederick Ernest] Weiss, FRS | 23 January 1926 |
| NLB/63/154 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 07 July 1922 |
| NLB/55/433 | Copy letter from [William Bate] Hardy, Secretary of the Royal Society and FRS; to Professor [Albert Charles] Seward, FRS | 27 March 1918 |
| RR/17/375 | Referee's report by Albert Charles Seward, on a paper 'Sphaerostoma ovale...and crossotheca grenii, the ovule and pollen-syangium of heterangium grenii' by M Benson | 12 May 1909 |
| RR/14/236 | Detailed referee's report by John Gilbert Baker, on a paper 'On the structure and affinities of Matonia pectinata, R. BR., with notes on the geological history of the Matonineae' by Albert Charles Seward | 7 March 1899 |
| RR/19/135 | Referee's report by Albert Charles Seward, on a paper 'On the comparative anatomy and affinities of the Araucarineae' by Robert Boyd Thomson | September 1912 |
| RR/18/70 | Referee's report by Albert Charles Seward, on a paper 'The lignite of bovey tracey' by Clement Reid and Eleanor Reid | 7 June 1910 |
| RR/14/235 | Referee's report by John Gilbert Baker, on a paper 'On the structure and affinities of Matonia pectinata, R. BR., with notes on the geological history of the Matonineae' by Albert Charles Seward | nd [March 1899] |
| RR/21/137 | Referee's report by Albert Charles Seward, on a paper 'On fossil plants, showing structure, from the base of the Waverley Shale of Kentucky' by Dukinfield Henry Scott and E C Jeffrey | 2 April 1914 |
| RR/42/90 | Referee's report by Albert Charles Seward, on a paper 'The chemical sectioning of plant fibres' by M A Kelaney and G O Searle | March 1930 |
| RR/14/237 | Referee's report by Frederick Orpen Bower, on a paper 'On the structure and affinities of Matonia pectinata, R. BR., with notes on the geological history of the Matonineae' by Albert Charles Seward | nd [March 1899] |
| RR/49/59 | Referee's report by Albert Charles Seward, on a paper 'Perforated ray cells' by Laura Chalk and M M Chattaway | [February 1933] |
| RR/23/93 | Referee's report by Albert Charles Seward, on a paper 'New bennettitean cones from the British cretaceous' by Marie C Stopes | 12 June 1916 |
| RR/45/94 | Referee's report by Albert Charles Seward, on a paper 'The algal sediments of Andros Island, Bahamas' by Maurice Black | [November 1932] |
| NLB/55/890 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, Chairman of the Botany Committee and FRS | 21 October 1918 |
| RR/46/90 | Referee's report by Albert Charles Seward, on a paper 'On the Structure of Zygopteris primaria (Cotta) and on the relations between the genera Zygopteris, Etapteris and Botrychioxvlon' by Birbal Sahni | [July 1932] |
| RR/17/126 | Referee's report by Albert Charles Seward, on a paper 'Miadesmia membranacea, Bertand; a new Palœozoic Lycopod with a seed-like structure' by Margaret Benson | [July 1907] |
| NLB/61/654 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 3 October 1921 |
| NLB/64/116 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, Chairman of the Botany Committee and FRS | 2 February 1923 |
| RR/53/36 | Referee's report by Albert Charles Seward, on a paper 'On plant-remains from the Silurian of Victoria, Australia, that extend and connect floras hitherto described' by Isabel C Cookson | [November 1934] |
| NLB/62/301 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 20 January 1922 |
| NLB/64/461 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, Chairman of the Botany Committee and FRS | 19 April 1923 |
| RR/58/46 | Referee's report by Albert Charles Seward, on a paper 'On the plant-remains from the downtonian of England and Wales' by William Henry Lang | November 1936 |
| NLB/62/236 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 9 January 1922 |
| NLB/55/886 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, Chairman of the Botany Committee and FRS | 21 October 1918 |
| NLB/65/822 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 11 January 1924 |
| NLB/55/524 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, Chairman of the Botany Committee and FRS | 15 May 1918 |
| NLB/55/840 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, Chairman of the Botany Committee and FRS | 14 October 1918 |
| NLB/55/891 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, Chairman of the Botany Committee and FRS | 21 October 1918 |
| NLB/64/500 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 26 April 1923 |
| NLB/66/162 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof, [Albert Charles] Seward, FRS | 6 March 1924 |
| NLB/64/501 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 26 April 1923 |
| NLB/65/802 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 4 January 1924 |
| NLB/65/276 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 4 October 1923 |
| NLB/57/64 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor AC [Albert Charles] Seward, FRS | 10 July 1919 |
| NLB/64/407 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, Chairman of the Botany Committee and FRS | 9 April 1923 |
| NLB/63/652 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 24 November 1922 |
| NLB/63/610 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 15 November 1922 |
| NLB/69/126 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. Albert Charles Seward, FRS | 16 January 1926 |
| NLB/66/25 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Prof. [Albert Charles] Seward, FRS | 11 February 1924 |
| NLB/65/633 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 1 December 1923 |
| NLB/64/583 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 07 May 1923 |
| NLB/64/817 | Copy letter from William Bate Hardy, Secretary of the Royal Society; [William] Bateson Esq. FRS | 25 June 1923 |
| NLB/66/61 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Albert Charles] Seward, FRS | 15 February 1924 |
| NLB/64/801 | Copy letter from secretary of the Royal Society; to Professor [Albert Charles] Seward FRS | 20 June 1923 |
| NLB/65/615 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 29 November 1923 |
| NLB/65/831 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [James Charles] Philip, FRS | 15 January 1924 |
| NLB/65/315 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 11 October 1923 |
| NLB/65/544 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 16 November 1923 |
| NLB/65/917 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 29 January 1924 |
| NLB/65/754 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 18 December 1923 |
| NLB/65/316 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 11 October 1923 |
| NLB/65/782 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 28 December 1923 |
| NLB/64/748 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 14 June 1923 |
| NLB/66/16 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. [James Charles] Philip, FRS | 7 February 1924 |
| NLB/65/786 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 2 January 1924 |
| NLB/66/89 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Prof [Albert Charles] Seward, FRS | 21 February 1924 |
| NLB/67/125 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 31 October 1924 |
| NLB/66/579 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Albert Charles] Seward, FRS | 31 May 1924 |
| NLB/68/622 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Thomas Holland, KCSI, KCIE, FRS | 24 September 1925 |
| NLB/66/455 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Albert Charles] Seward, FRS | 15 May 1924 |
| NLB/67/401 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 15 December 1924 |
| NLB/66/543 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Albert Charles] Seward, FRS | 27 May 1924 |
| NLB/66/577 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Albert Charles] Seward, FRS | 30 May 1924 |
| NLB/66/344 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Albert Charles] Seward, FRS | 12 April 1924 |
| NLB/66/371 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Albert Charles] Seward, FRS | 28 April 1924 |
| NLB/69/178 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Albert Charles] Seward, FRS | 21 January 1926 |
| NLB/66/434 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to [Reginald] Campbell Thompson Esq., Milburn Lodge, Boars Hil, Oxford | 8 May 1924 |
| NLB/66/692 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Albert Charles] Seward, FRS | 20 June 1924 |
| NLB/68/855 | Copy letter from Charles Scott Sherrington, President of the Royal Society; to [Albert Charles] Seward, FRS | 14 November 1925 |
| NLB/66/879 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Albert Charles] Seward, FRS | 5 August 1924 |
| NLB/69/234 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Albert Charles] Seward, FRS | 11 February 1926 |
| NLB/68/897 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 21 November 1925 |
| NLB/69/92 | Copy letter from Henry Hallett Dale, Secretary of the Royal Society; to Dr. [Albert] Seward, FRS | 8 January 1926 |
| NLB/73/183 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Albert Charles] Seward, FRS | 3 February 1931 |
| NLB/69/171 | Copy letter from Henry Hallett Dale, Secretary of the Royal Society; to Sir [Albert Charles] Seward, FRS | 22 January 1926 |
| NLB/68/841 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 10 November 1925 |
| NLB/72/45 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 31 January 1929 |
| NLB/71/549 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Albert Charles] Seward, FRS | 6 July 1929 |
| NLB/72/682 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 27 February 1930 |
| NLB/73/77 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Albert Charles] Seward, FRS | 22 November 1930 |
| CD/42/6 | Copy letter from [James Hopwood Jeans, Secretary of the Royal Society], to Professor [Albert Charles] Seward | 4 January 1924 |
| NLB/67/436 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 18 December 1924 |
| IM/004115 | Seward, Sir Albert Charles | nd |
| IM/001085 | Sigmund Freud and others | 1938 |
| NLB/34 | New Letter Book volume 34, copy letters sent from Royal Society administration | 14 November 1906-25 March 1907 |
| RR/15/254 | Referee's report by William Turner Thiselton-Dyer, on a paper 'The structure and affinities of dipteris, with notes on the geological history of the dipteridinae' by Albert Charles Seward and Elizabeth Dale | 10 June 1901 |
| RR/16/21 | Referee's report by Albert Charles Seward, on a paper 'Studies in the morphology of spore-producing members. No. V. general comparisons and conclusion' by Professor Frederick Orpen Bower | 17 February 1903 |
| RR/16/86 | Referee's report by Albert Charles Seward, on a paper 'The structure of the Palaeozoic seed Lagenostoma lomaxi with a statement of the evidence upon which it is referred to Lygingodendron' by Francis Wall Oliver and Dukinfield Henry Scott | January 1904 |
| RR/16/330 | Referee's report by Albert Charles Seward, 'The microsporangia of the pteridospermeae, with remarks on their relationship to existing groups' on a paper by Robert Kidston | December 1905 |
| NLB/32/19 | Copy letter from Robert William Frederick Harrison, to Professor Harry Marshall Ward, Fellow of the Royal Society, Chairman of the Botany Sectional Committee | 12 December 1905 |
| NLB/32/95 | Copy letter from [Robert William Frederick Harrison], to Professor Harry Marshall Ward, Fellow of the Royal Society | 22 December 1905 |
| NLB/33/716 | Copy letter from Robert William Frederick Harrison, to; Augustus Desire Waller, Lord Avebury [John Lubbock], Sir Benjamin Baker, Dr Henry Frederick Baker, Professor David Ferrier, Professor Sydney John Hickson, Dr A Scott, Mr Albert Charles Seward, Professor William Johnson Sollas, and Professor Silvanus Phillips Thompson, Fellows of the Royal Society | 26 October 1906 |
| NLB/36 | New Letter Book volume 36, copy letters sent from Royal Society administration | 22 July 1907-9 January 1908 |
| NLB/35/783 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 16 July 1907 |
| NLB/34/587 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 11 February 1907 |
| NLB/36/727 | Copy letter from Archibald Geikie, to Professor Albert Charles Seward, Fellow of the Royal Society, Cambridge | 7 December 1907 |
| NLB/38/91 | Copy letter from Archibald Geikie, to Professor Albert Charles Seward, Fellow of the Royal Society | 15 June 1908 |
| NLB/39/118 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward, Fellow of the Royal Society | 27 November 1908 |
| RR/19/132 | Referee's report by Albert Charles Seward, on a paper 'Petrifactions of the earliest European angiosperms' by Marie Stopes | 1 March 1912 |
| RR/19/120 | Referee's report by William Henry Lang, on a paper 'A petrified Williamsonia from Scotland' by Albert Charles Seward | [July 1912] |
| RR/46/107 | Referee's report by Dukinfield Henry Scott, on a paper 'A Persian Sigillaria' by Albert Charles Seward | 28 March 1932 |
| NLB/66/855 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Albert Charles] Seward, FRS | 29 July 1924 |
| NLB/35/741 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Chairman of the Botany Sectional Committee | 11 July 1907 |
| NLB/36/531 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society, Chairman of the Botany Committee | 11 November 1907 |
| NLB/34/859 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society, Chairman of the Botany Sectional Committee | 19 March 1907 |
| RR/19/119 | Referee's report by Francis Wall Oliver, on a paper 'A petrified Williamsonia from Scotland' by Albert Charles Seward | [July 1912] |
| NLB/54 | New Letter Book volume 54, copy letters sent from Royal Society administration | 10 January 1917-2 November 1917 |
| NLB/68/812 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to the Deputy Master of the Royal Mint | 5 November 1925 |
| NLB/66 | New Letter Book volume 66, copy letters sent from Royal Society administration | 1 February 1924-25 September 1924 |
| NLB/64 | New Letter Book volume 64, copy letters sent from Royal Society administration | 19 January 1923-11 July 1923 |
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |
| MDA/C/6/4 | Papers relating to an award from the Darwin Research Fund to Sir Arthur Hill, Royal Botanic Gardens Kew | 1939-1940 |
| RR/16/227 | Referee's report by Albert Charles Seward, on a paper 'On the structure and affinities of fossil plants from the palaeozoic rocks. V. A new type of sphenophyllaceous cone (sphenophyllum fertile) from the lower coal measures' by Dukinfield Henry Scott | December 1904 |
| RR/46/106 | Referee's report by William Henry Lang, on a paper 'A Persian Sigillaria' by Albert Charles Seward | [March 1932] |
| RR/44/121 | Referee's report by Albert Charles Seward, on a paper 'Contributions to the knowledge of lower carboniferous plants. - Part III. - On the fossil-flora of the black limestones in Teila Quarry, Gwaenysgor, near Prestatyn, Flintshire, with special references to Diplopteridium teilianum KIDSTON sp. (gen, nov.) and some other fern-like fronds' by John Walton | May 1931 |
| EC/1898/15 | Seward, Sir Albert Charles: certificate of election to the Royal Society | |
| RR/16/382 | Referee's report by Francis Wall Oliver, on a paper 'The araucarieae, recent and extinct' by Albert Charles Seward and Sibille O Ford | 15 January 1905 |
| RR/14/91 | Referee's report by Albert Charles Seward, on a paper 'On the structure and affinities of fossil plants from the Palaeozoic rocks.—III. On Medullosa anglica, a new representative of the Cycadofilices' by Dukinfield Henry Scott | 26 December 1898 |
| RR/16/248 | Referee's report by Albert Charles Seward, on a paper 'Some new species of lagenostoma: A type of pteridospermous seed from the coal measures' by E A Newell Arber | 26 January 1905 |
| RR/16/381 | Referee's report by Dukinfield Henry Scott, on a paper 'The Araucarieae, recent and extinct' by Albert Charles Seward and Sibille O Ford | 2 December 1905 |
| RR/17/442 | Referee's report by Albert Charles Seward, on a paper 'Studies on the structure and affinities of cretaceous plants' by Marie Stopes and Kenjiro Fujii | 31 May 1909 |
| RR/19/118 | Referee's report by Dukinfield Henry Scott, on a paper 'A petrified Williamsonia from Scotland' by Albert Charles Seward | 19 June 1912 |
| RR/30/10 | Referee's report by Albert Charles Seward and Frederick Frost Blackman, on a paper 'The selective photochemical action of polarised light.—I. The hydrolysis of starch' by Edward Charles Cyril Baly and Elizabeth [Sidney] Semmens | [August 1924] |
| RR/34/103 | Referee's report by Frederick Orpen Bower, on a paper 'The Cretaceous plant-bearing rocks of Western Greenland' by Albert Charles Seward | 2 February 1926 |
| RR/34/104 | Referee's report by Dukinfield Henry Scott, on a paper 'The Cretaceous plant-bearing rocks of Western Greenland' by Albert Charles Seward | 24 February 1926 |
| RR/41/141 | Referee's report by Albert Charles Seward, on a paper 'Some fossil plants of early Devonian type from the Walhalla series, Victoria, Australia' by William Henry Lang and Isabella C Cookson | July 1930 |
| RR/51/4 | Referee's report by Albert Charles Seward, on a paper 'On a flora, including vascular land plants, associated with Monograptus, in rocks of Silurian age, from Victoria, Australia' by William Henry Lang and Isabel C Cookson | [July 1934] |
| NLB/38/90 | Copy letter from Archibald Geikie, to Professor Albert Charles Seward, Fellow of the Royal Society | 15 June 1908 |
| NLB/38/408 | Copy letter from Archibald Geikie, to Professor Albert Charles Seward, Fellow of the Royal Society | 30 July 1908 |
| NLB/38/805 | Copy letter from Robert William Frederick Harrison, to Professor Albert Charles Seward, Fellow of the Royal Society | 9 November 1908 |
| MC/17 | Volume 17 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1897-1899 |