| RefNo | Title | Date |
| NLB/21/41 | Copy letter from Robert William Frederick Harrison, to Dr George Johnstone Stoney, Fernbanl, Bowth, County Dublin | 20 July 1900 |
| EC/1892/15 | Herdman, Sir William Abbott: certificate of election to the Royal Society | |
| NLB/57/356 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor WA [Sir William Abbott] Herdman, Foreign Secretary of the Royal Society | 25 October 1919 |
| MM/21/55 | Letter from John Lubbock, 1st Baron Avebury, to WA Herdman | 6 February 1906 |
| IM/Maull/002045 | Herdman, Sir William Abbott | |
| NLB/56/106 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 25 November 1918 |
| NLB/55/513 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to unknown correspondent | 07 May 1918 |
| MC/16/241 | Letter from [William Abbott] Herdman, University College, Liverpool, to Professor [Michael] Foster, Secretary of the Royal Society | 19 July 1895 |
| NLB/6/1030 | Copy letter from Herbert Rix, to Professor William Abbott Herdman | 6 October 1892 |
| NLB/6/895 | Copy letter from Theodore E James, to Professor William Abbott Herdman, Fellow of the Royal Society | 15 August 1892 |
| NLB/22/7 | Copy telegram from Michael Foster, to Sir William Abbott Herdman, [Fellow of the Royal Society], Croxteth Lodge, Ullet Road, Liverpool | 11 February 1901 |
| RR/16/214 | Referee's report by William Abbott Herdman, on a paper ['On a method of using the tow-net as an opening and closing tow-net'] by George Robert Milne Murray | 7 January 1905 |
| NLB/21 | New Letter Book volume 21, copy letters sent from Royal Society administration | 14 July 1900-7 February 1901 |
| NLB/20 | New Letter Book volume 20, copy letters sent from Royal Society administration | 11 January 1900-14 July 1900 |
| NLB/14/895 | Copy letter from Robert William Frederick Harrison, to William Abbott Herdman, Fellow of the Royal Society | 2 June 1897 |
| RR/16/40 | Referee's report by William Abbott Herdman, on a paper 'Experiments in hybridization; with special reference to the effect of conditions on dominance' by Leonard Doncaster | April 1903 |
| NLB/20/192 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 21 February 1900 |
| NLB/16/742 | Copy letter from Robert William Frederick Harrison, to Professor [William] Herdman, Fellow of the Royal Society | 1 June 1898 |
| NLB/21/558 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 10 December 1900 |
| NLB/16/719 | Copy letter from Robert William Frederick Harrison, to W T Thiselton-Dyer, Fellow of the Royal Society | 25 May 1898 |
| NLB/22/17 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 12 February 1901 |
| NLB/17/503 | Copy letter from Michael Foster, to Archibald Geikie, [Fellow of the Royal Society] | 11 November 1898 |
| NLB/21/708 | Copy telegram from Robert William Frederick Harrison, to William Abbott Herdman, [Fellow of the Royal Society] University College, Liverpool | 14 January 1901 |
| NLB/18/528 | Copy letter from Theodore E James, to Messrs Harrison & Sons | 27 March 1899 |
| NLB/17/729 | Copy letter from Robert William Frederick Harrison, to Sir Archibald Geikie, Fellow of the Royal Society | 13 December 1898 |
| NLB/22/702 | Copy letter from unknown correspondent, to [William Abbott] Herdman, Fellow of the Royal Society | 27 June 1901 |
| NLB/22/390 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 6 May 1901 |
| NLB/19/448 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 5 October 1899 |
| NLB/20/296 | Copy letter from Arthur William Russell, to Professor William Abbott Herdman, Fellow of the Royal Society | 14 March 1900 |
| NLB/32/390 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, [Fellow of the Royal Society] | [3 March 1906] |
| NLB/20/11 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 13 January 1900 |
| NLB/19/860 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 9 January 1900 |
| NLB/19/832 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 4 January 1900 |
| NLB/20/580 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 24 May 1900 |
| NLB/20/3 | Copy letter from Robert William Frederick Harrison, to Sir Michael Foster, Secretary of the Royal Society | 11 January 1900 |
| NLB/20/94 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 30 January 1900 |
| NLB/20/49 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 22 January 1900 |
| NLB/20/131 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 9 February 1900 |
| NLB/20/126 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 6 February 1900 |
| NLB/20/142 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 12 February 1900 |
| NLB/20/281 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 12 March 1900 |
| NLB/20/478 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 1 May 1900 |
| NLB/20/571 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 22 May 1900 |
| NLB/20/634 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 6 June 1900 |
| NLB/20/540 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 17 May 1900 |
| NLB/22/268 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 2 April 1901 |
| NLB/20/744 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 28 June 1900 |
| NLB/21/66 | Copy letter from Robert William Frederick Harrison, to Dr George Johnstone Stoney, Fellow of the Royal Society, Fernbank, Howth, County Dublin | 23 July 1900 |
| NLB/21/56 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 23 July 1900 |
| NLB/21/52 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 20 July 1900 |
| NLB/21/269 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 15 October 1900 |
| NLB/21/29 | Copy letter from Robert William Frederick Harrison, to Dr George Johnstone Stoney, Fellow of the Royal Society, Fernbank, Howth, County Dublin | 18 July 1900 |
| NLB/21/80 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, [Fellow of the Royal Society] | 25 July 1900 |
| NLB/23/1/175 | Copy enclosure from [Robert William Frederick Harrison], to Professor William Abbott Herdman | [7 October 1901] |
| NLB/22/644 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society, Chairman of the Zoology Committee | 19 June 1901 |
| NLB/33/287 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 27 July 1906 |
| NLB/22/122 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 7 March 1901 |
| NLB/22/151 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 13 March 1901 |
| NLB/22/758 | Copy letter from unknown correspondent, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 10 July 1901 |
| NLB/22/181 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 19 March 1901 |
| NLB/22/265 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 2 April 1901 |
| NLB/22/350 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 30 April 1901 |
| NLB/28/342 | Copy letter from [Robert William Frederick Harrison], to Professor William Abbott Herdman, Fellow of the Royal Society | 20 February 1904 |
| NLB/22/635 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 19 June 1901 |
| NLB/22/520 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 29 May 1901 |
| NLB/22/609 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 11 June 1901 |
| NLB/22/657 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, [Fellow of the Royal Society] | 21 June 1901 |
| NLB/22/664 | Copy letter from [William Abbott Herdman], to Members of the Zoology Committee | 24 June 1901 |
| NLB/23/1/311 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 24 October 1901 |
| NLB/23/1/176 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 7 October 1901 |
| NLB/23/2/103 | Copy letter from Alfred Bray Kempe, to Professor Andrew Russell Forsyth, Chairman of the Mathematic Committee and other Sectional Committee Chairmen | 29 June 1901 |
| NLB/23/1/207 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 10 October 1901 |
| NLB/23/1/252 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 16 October 1901 |
| NLB/23/1/234 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 15 October 1901 |
| NLB/23/2/332 | Copy letter sent from Sir Michael Foster, to Professor William Abbott Herdman, Fellow of the Royal Society | 12 May 1903 |
| NLB/23/1/517 | Copy letter from Robert William Frederick Harrison, to Professor William Abbottt Herdman, Fellow of the Royal Society | 25 November 1901 |
| NLB/23/1/474 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 18 November 1901 |
| NLB/23/2/433 | Copy letter sent from unknown correspondent, to The Under Secretary of State for the Colonies, Colonial Office, Downing Street | 24 February 1904 |
| NLB/23/1/611 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdamn, Fellow of the Royal Society, Chairman of the Zoology Sectional Committee | 11 December 1901 |
| NLB/23/1/666 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 21 December 1901 |
| NLB/24/682 | Copy telegram from Robert William Frederick Harrison, to William Abbott Herdman, [Fellow of the Royal Society], Croxteth Lodge, Ullet Road, Liverpool | [June 1902] |
| NLB/25/257 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 6 October 1902 |
| NLB/25/112 | Copy letter from Theodore E James, to Professor William Abbott Herdman, Fellow of the Royal Society | 12 August 1902 |
| NLB/24/616 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 9 June 1902 |
| NLB/25/96 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 7 August 1902 |
| NLB/25/113 | Copy letter from Theodore E James, to Professor William Abbott Herdman, Fellow of the Royal Society, Chairman of the Zoology Committee | 12 August 1902 |
| NLB/25/164 | Copy letter from A H White, to Professor William Abbott Herdman, Fellow of the Royal Society | 5 September 1902 |
| NLB/30/143 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 3 February 1905 |
| NLB/54/150 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society and FRS | 19 February 1917 |
| NLB/25/656 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, [Fellow of the Royal Society], Croxteth Lodge, Ullet Road, Liverpool | 3 December 1902 |
| NLB/27/261 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 29 July 1903 |
| NLB/29/503 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 26 October 1904 |
| NLB/27/573 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 22 October 1903 |
| NLB/34/248 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society, Croxteth Lodge, Ullet Road, Liverpool | 17 December 1906 |
| NLB/26/699 | Copy letter from Robert William Frederick Harrison to, Professor William Abbott Herdman, Fellow of the Royal Society | 13 May 1903 |
| NLB/27/871 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 16 December 1903 |
| MC/19/506 | Copy of a letter from [Alfred Bray] Kempe, The Royal Society, Burlington House, London, to Professor [William Abbott] Herdman | 29 January 1904 |
| NLB/28/100 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 9 January 1904 |
| NLB/27/836 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 8 December 1903 |
| NLB/29/134 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 11 July 1904 |
| NLB/30/268 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 21 February 1905 |
| NLB/29/121 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 8 July 1904 |
| NLB/33/41 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 19 June 1906 |
| NLB/33/577 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society, Liverpool | 3 October 1906 |
| NLB/30/567 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 12 April 1905 |
| MC/19/425 | Letter from [William Abbott] Herdman, The University of Liverpool, to [Robert William Frederick] Harrison | 25 October 1904 |
| NLB/30/665 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 3 May 1905 |
| NLB/30/774 | Copy letter from Robert William Frederick Harrison, to the President of the Linnean Society, [William Abbott Herdman, Fellow of the Royal Society] | 22 May 1905 |
| NLB/28/575 | Copy letter from Robert William Frederick Harrison, to the Under Secretary of State, Colonial Office, S.W. | 13 April 1904 |
| NLB/29/538 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 1 November 1904 |
| NLB/29/564 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 3 November 1904 |
| NLB/33/538 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 27 September 1906 |
| NLB/34/288 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Croxteth Lodge, Ullet Road, Liverpool | 21 December 1906 |
| NLB/33/553 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, [Fellow of the Royal Society] Crosleith Lodge, Ullett Road, Liverpool | 1 October 1906 |
| NLB/31/661 | Copy letter from Robert William Frederick Harrison, to William Abbott Herdman, Fellow of the Royal Society | 28 October 1905 |
| NLB/34/214 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society, Croxteth Lodge, Ullet Road, Liverpool | 12 December 1906 |
| NLB/33/635 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 12 October 1906 |
| NLB/33/297 | Copy letter from Alfred Bray Kempe, to [Professor William Abbott] Herdman, Fellow of the Royal Society | 31 July 1906 |
| NLB/33/305 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society, British Association, York | 1 August 1906 |
| NLB/33/399 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 23 August 1906 |
| NLB/33/390 | Copy letter from Theodore E James, to Professor William Abbott Herdman, Fellow of the Royal Society, Rowan's Cottage, Port Erin, Isle of Man | [22 August 1906] |
| NLB/33/714 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society, Croxteth Lodge, Ullet Road, Liverpool | 26 October 1906 |
| NLB/32/825 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 30 May 1906 |
| NLB/33/790 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 3 November 1906 |
| NLB/35/397 | Copy letter from Robert William Frederick Harrison, to Alfred Bray Kempe, Fellow of the Royal Society | 29 May 1907 |
| NLB/34/658 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 22 February 1907 |
| NLB/36/568 | Copy letter from Robert William Frederick Harrison, to the Crown Agents for the Colonies | 12 November 1907 |
| NLB/37/429 | Copy letter from Robert William Frederick Harrison to Professor W [William Abbott] Herdman, Fellow of the Royal Society | 19 March 1908 |
| NLB/40/92 | Copy letter from Robert William Frederick Harrison to Miss May Allen, Zoology Department, The University, Liverpool | 4 April 1909 |
| NLB/41/101 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 13 October 1909 |
| NLB/40/9 | Copy letter from Robert William Frederick Harrison to Professor W [William] A [Abbott] Herdman FRS | 22 March 1909 |
| NLB/42/118 | Copy letter from Robert William Frederick Harrison to Professor W [William] A [Abbott] Herdman FRS | 6 April 1910 |
| NLB/42/192 | Copy letter from Robert William Frederick Harrison to Professor W [William] A [Abbott] Herdman FRS | 22 April 1910 |
| NLB/41/297 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 17 November 1909 |
| NLB/41/541 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 10 January 1910 |
| NLB/42/730 | Copy letter from Robert William Frederick Harrison to Professor W [William] A [Abbott] Herdman FRS | 28 September 1910 |
| NLB/42/762 | Copy letter from Robert William Frederick Harrison to Professor W [William] A [Abbott] Herdman FRS | 4 October 1910 |
| NLB/42/741 | Copy letter from Robert William Frederick Harrison to Sir Joseph D [Dalton] Hooker OM, FRS | 29 September 1910 |
| NLB/42/739 | Copy letter from Robert William Frederick Harrison to Sir W [William] T [Turner] Thiselton-Dyer KCMG, FRS | 29 September 1910 |
| NLB/42/742 | Copy letter from Robert William Frederick Harrison to Sir Ray Lankester KCB, FRS | 29 September 1910 |
| NLB/44/269 | Copy letter from Robert William Frederick Harrison to Professor W [William] A [Abbott] Herdman FRS | 2 June 1911 |
| NLB/46/572 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 26 September 1912 |
| NLB/46/259 | Copy letter from Robert William Frederick Harrison, to William Abbott Herdman, Fellow of the Royal Society | 2 July 1912 |
| NLB/52/555 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor William Abbot Herdman, FRS | 13 January 1916 |
| NLB/46/461 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 2 August 1912 |
| NLB/47/306 | Copy letter from Robert William Frederick Harrison to Professor W [William] A [Abbott] Herdman FRS | 13 January 1913 |
| NLB/48/334 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 17 June 1913 |
| NLB/47/320 | Copy letter from Robert William Frederick Harrison to Professor W [William] A [Abbott] Herdman FRS, Challenger Committee | 14 January 1913 |
| NLB/47/475 | Copy letter from Robert William Frederick Harrison to Professor W [William] A [Abbott] Herdman FRS | 5 February 1913 |
| MC/28/140 | Letter from [William Abbott] Herdman, The University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 9 December 1913 |
| NLB/47/499 | Copy letter from Robert William Frederick Harrison to Professor W [William] A [Abbott] Herdman FRS | 10 February 1913 |
| NLB/51/358 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor William Abbott Herdman FRS | 23 February 1915 |
| NLB/54/610 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 3 July 1917 |
| NLB/54/887 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 29 October 1917 |
| NLB/59/24 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 10 July 1920 |
| RR/20/71 | Referee's report by William Abbott Herdman, on a paper 'Protostigmata in ascidians' by A G Huntsman | 10 March 1913 |
| NLB/54/191 | Copy letter from William Abbott Herdman, Foreigh Secretary of the Royal Society; to Professor Yves Delage | 26 February 1917 |
| RR/9/50 | Referee's report by John Murray, on a paper 'On the genus Culeolus' by William Abbott Herdman | 21 February 1882 |
| NLB/54/583 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 25 June 1917 |
| NLB/53/335 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS | 14 January [?] 1916 |
| NLB/54/575 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr. F. Morley | 23 June 1917 |
| NLB/55/217 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [William Abbott] Herdman, FRS | 19 January 1918 |
| NLB/54/292 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society and FRS | 26 March 1917 |
| NLB/54/295 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society and FRS | 26 March 1917 |
| NLB/54/880 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 27 October 1917 |
| NLB/54/783 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 29 September 1917 |
| NLB/23/1 | Copy letters sent from Royal Society administrative staff and officers | 2 August 1901-12 February 1902 |
| RR/20/70 | Referee's report by William Abbott Herdman, on a paper 'On the origin of the ascidian mouth' by A G Huntsman | 10 March 1913 |
| NLB/56/755 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 20 May 1919 |
| NLB/56/178 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 7 December 1918 |
| NLB/54/877 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 26 October 1917 |
| NLB/54/781 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 26 September 1917 |
| NLB/56/71 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 14 November 1918 |
| NLB/56/135 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 29 November 1918 |
| NLB/56/325 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 14 January 1919 |
| NLB/56/294 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 7 January 1919 |
| NLB/56/306 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 10 January 1919 |
| IM/002046 | Herdman, Sir William Abbott | 1922 |
| NLB/56/556 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 12 March 1919 |
| NLB/56/655 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 8 April 1919 |
| NLB/56/825 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 3 June 1919 |
| NLB/55/198 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS | 11 January 1918 |
| NLB/55/259 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS | 07 February 1918 |
| NLB/56/899 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 23 June 1919 |
| NLB/55/382 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS | 15 March 1918 |
| NLB/58/67 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 9 March 1920 |
| NLB/55/172 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Wiliam Abbott] Herdman, Foreign Secretary of the Royal Society and FRS | 04 January 1918 |
| NLB/55/118 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society and FRS | 07 December 1917 |
| NLB/59/103 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 16 July 1920 |
| NLB/55/119 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society and FRS | 07 December 1917 |
| NLB/58/432 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 5 May 1920 |
| NLB/55/146 | Copy letter from Miss Maud K. Jukes, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society and FRS | 18 December 1917 |
| NLB/61/265 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS | 13 June 1921 |
| NLB/55/111 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society, Chairman of the Grain Pests War (Sectional) Committee and FRS | 07 December 1917 |
| NLB/57/363 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Sir William Abbott] Herdman, Foreign Secretary of the Royal Society | 27 October 1919 |
| NLB/58/744 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 14 June 1920 |
| NLB/59/106 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 16 July 1920 |
| NLB/59/624 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 25 October 1920 |
| NLB/59/349 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 22 September 1920 |
| NLB/57/611 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor WA [Sir William Abbott] Herdman, Foreign Secretary of the Royal Society | 16 December 1919 |
| NLB/59/42 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 12 July 1920 |
| NLB/59/513 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS | 11 October 1920 |
| NLB/59/153 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 21 July 1920 |
| NLB/59/212 | Copy letter from [William Abbott Herdman,] Foreign Secretary of the Royal Society to Monsieur le. Professor [Francois Antoine Alfred] Lacroix, FRS | 27 July 1920 |
| NLB/59/214 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 27 July 1920 |
| NLB/59/617 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 25 October 1920 |
| NLB/67/139 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Sydney John] Hickson, FRS | 1 November 1924 |
| NLB/57/359 | Copy letter from Sir William Bate Hardy, Secretary of the Royal Society; to JO Borley Esq. | 24 October 1919 |
| RR/14/56 | Referee's report by Edward Emanuel Klein, on a paper 'Observations upon the normal and pathological histology and bacteriology of the oyster' by William Abbott Herdman and Rubert William Boyce | [March 1899] |
| NLB/59/679 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 1 November 1920 |
| NLB/60/894 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS | 22 April 1921 |
| RR/11/160 | Referee's report by William Abbott Herdman, on a paper 'On the early development of Cirripedia' by Theodore T Groom | 27 June 1892 |
| NLB/60/244 | Copy letter from Frederick Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS | 4 January 1921 |
| RR/15/49 | Letter from Louis Compton Miall, on a paper 'Variation' by James Cossar Ewart to William Abbott Herdman | 5 May 1900 |
| AP/74/3/2 | Unpublished figures, oyster anatomy by W A [William Abbott] Herdman and Rubert Boyce | 1898 |
| NLB/60/328 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS | 20 January 1921 |
| NLB/61/699 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS | 13 October 1921 |
| NLB/57/9 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; Professor [Sir William Abbott] Herdman, Foreign Secretary of The Royal Society | 1 July 1919 |
| NLB/57/83 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Sir William Abbott] Herdman, Foreign Secretary of the Royal Society | 16 July 1919 |
| NLB/57/34 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor WA [Sir William Abbott] Herdman, Foreign Secretary of the Royal Society | 7 July 1919 |
| NLB/54/172 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Dr. [Henry] Forster Morley, Director of the International Catalogue of Scientific Literature | 23 February 1917 |
| NLB/57/109 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor WA [Sir William Abbott] Herdman, Foreign Secretary of the Royal Society | 23 July 1919 |
| NLB/57/281 | Copy letter from Sir William Bate Hardy, FRS, Secretary of the Royal Society; to Dr ES [Edwin Stephen] Goodrich, FRS | 3 October 1919 |
| NLB/57/362 | Copy letter from Sir William Bate Hardy, Secretary of the Royal Society; to [Sir William Abbott] Herdman, Foreign Secretary of the Royal Society | 25 October 1919 |
| NLB/55/779 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society and FRS | 20 September 1918 |
| MC/36/53 | Letter from [William Abbott] Herdman, Geography Department, The University of Liverpool, to the President and Officers of the Royal Society | 13 February 1922 |
| NLB/55/628 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Professor William Abbott] Herdman, Chairman of the Zoology Committee and FRS | 02 July 1918 |
| NLB/55/647 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society and FRS | 09 July 1918 |
| NLB/55/649 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society, Chairman of the Zoology Committee and FRS | 09 July 1918 |
| NLB/57/321 | Copy letter from [Sir William Bate] Hardy, FRS, Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS; University of Liverpool | [October 1919] |
| NLB/55/847 | Copy letter from [Dr.] Arthur Schuster, Secretary of the Royal Society; to Professor [William Abbott] Herdman, FRS; Sir [Edward Albert] Sharpey-Schafer,FRS; and Mr. [James Hopwood] Jeans, FRS | 16 October 1918 |
| NLB/55 | New Letter Book volume 55, copy letters sent from Royal Society administration | 5 November 1917-1 November 1918 |
| NLB/57/97 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society, OM | 23 July 1919 |
| NLB/57/87 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor WA [Sir William Abbott] Herdman, Foreign Secretary of the Royal Society | 15 July 1919 |
| NLB/57/158 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Sir William Abbott] Herdman, Foreign Secretary of the Royal Society | 31 July 1919 |
| NLB/57/282 | Copy letter from Sir William Bate Hardy, FRS, Secretary of the Royal Society; to WA [William Abbott] Herdman, Foreign Secretary of the Royal Society | 3 October 1919 |
| NLB/57/323 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor W [Sir William Abbott] Herdman, FRS, Foreign Secretary of the Royal Society | 16 October 1919 |
| NLB/57/436 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor WA [Sir William Abbott] Herdman, FRS, Foreign Secretary of the Royal Society | 6 November 1919 |
| NLB/57/741 | Copy letter from Professor [Sir] William Abbott Herdman, Foreign Secretary of the Royal Society; to Professor Y Delage | 28 January 1920 |
| NLB/68/315 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Sydney John] Hickson, FRS | 19 June 1925 |
| NLB/66/845 | Copy letter from [Francis Alexander Towle, Assistant Secretary of] the Royal Society; to the Editor, The Times | 25 July 1924 |
| CD/24/12 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society, to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 9 March 1920 |
| CD/58/8 | Letter from [William Abbott] Herdman, Department of Oceanography, Liverpool, to William Bate Hardy, Secretary of the Royal Society | 16 October 1920 |
| NLB/23/1/131 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 30 September 1901 |
| NLB/33 | New Letter Book volume 33, copy letters sent from Royal Society administration | 13 June 1906-15 November 1906 |
| NLB/18/187 | Copy letter from Robert William Frederick Harrison, to Professor Herdman | 2 February 1899 |
| NLB/20/278 | Copy letter from Arthur William Rucker, to William Abbott Herdman, [Fellow of the Royal Society] | 12 March 1900 |
| NLB/20/725 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 23 June 1900 |
| NLB/22/56 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, Fellow of the Royal Society | 23 February 1901 |
| NLB/21/317 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 29 October 1900 |
| NLB/21/309 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, [Fellow of the Royal Society] | 25 October 1900 |
| NLB/21/711 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 14 January 1901 |
| NLB/21/695 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 11 January 1901 |
| NLB/23/1/320 | Copy letter from Michael Foster, to Professor William Abbott Herdman, Fellow of the Royal Society | 24 October 1901 |
| NLB/27/652 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 10 November 1903 |
| NLB/30/605 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 17 April 1905 |
| NLB/31/637 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 23 October 1905 |
| NLB/32/892 | Copy letter from Robert William Frederick Harrison, to Professor William Herdman, Fellow of the Royal Society, University of Liverpool | 12 June 1906 |
| RR/14/70 | Letter from William Abbott Herdman, to Edwin Ray Lankester, regarding a paper 'A study of the phyto-plankton of the Atlantic' by George Robert Milne Murray and Vernon Herbert Blackman | 1 June 1898 |
| NLB/56 | New Letter Book volume 56, copy letters sent from Royal Society administration | 1 November 1918-27 June 1919 |
| RR/26/132 | Referee's report by William Abbott Herdman, on a paper 'The breeding places of the eel' by Ernst Johannes Schmidt | 28 July 1921 |
| NLB/57/243 | Copy letter from Sir William Bate Hardy, FRS, Secretary of the Royal Society; to Professor WA [William Abbott] Herdman, FRS, Foreign Secretary of the Royal Society | 25 September 1919 |
| CD/65/3 | Letter from [William Abbott] Herdman; British Association for the Advancement of Science, Burlington House; to James Hopwood Jeans, Secretary of the Royal Society | 15 November 1920 |
| NLB/18/818 | Copy letter from Robert William Frederick Harrison, to Sir Clements R Markham, Fellow of the Royal Society | 19 May 1899 |
| NLB/20/470 | Copy letter from Robert William Frederick Harrison, to William Abbott Herdman, Fellow of the Royal Society | 30 April 1900 |
| NLB/28/330 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 19 February 1904 |
| NLB/28/597 | Copy letter from Alfred Bray Kempe, to the Under Secretary of State, Colonial Office, S.W. | 15 April 1904 |
| NLB/28/554 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 28 March 1904 |
| NLB/33/545 | Copy letter from Robert William Frederick Harrison, to Professor [William Abbott] Herdman, [Fellow of the Royal Society] | 28 September 1906 |
| NLB/54 | New Letter Book volume 54, copy letters sent from Royal Society administration | 10 January 1917-2 November 1917 |
| NLB/22 | New Letter Book volume 22, copy letters sent from Royal Society administration | 8 February 1901-2 August 1901 |
| NLB/29 | New Letter Book volume 29, copy letters sent from Royal Society administration | 13 June 1904-13 January 1905 |
| NLB/59 | New Letter Book volume 59, copy letters sent from Royal Society administration | 9 July 1920-2 December 1920 |
| NLB/60 | New Letter Book volume 60, copy letters sent from Royal Society administration | 2 December 1920-26 April 1921 |
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |
| MDA/C/12/2/3 | Letter from William Abbott Herdman, the Royal Society, Burlington House, London, to Robert Harrison | 7 June 1901 |
| MDA/C/12/2/5 | Draft letter from William Abbott Herdman, to members of the Royal Society Zoological Committee | 20 June 1901 |
| MDA/C/12/2/6 | Letter from William Abbott Herdman, the Royal Society, Burlington House, London, to Robert Harrison | 20 June 1901 |
| MDA/C/12/2/9 | Letter from William Abbott Herdman, University College, Liverpool, to Sir Michael Foster | 27 June 1901 |
| MDA/C/12/2/11 | Letter from William Abbott Herdman, 'train to Scotland', to Robert Harrison | 28 June [1901] |
| CD/103/10 | Draft letter from [William Abbott Herdman], Foreign Secretary, Royal Society, to Yves Delage | 11 December 1917 |
| CD/103/12 | Copy extract of a letter from William Abbott Herdman, to [Robert Harrison?] | 10 December 1917 |
| MC/19/409 | Letter from [William Abbott] Herdman, University College, Liverpool, to [Robert William Frederick] Harrison | 7 January 1904 |
| MC/33/112 | Letter from [Luigi] Luciani, University of Rome, 57 Via Marianna Dionigi, to [William Abbott] Herdman, | 18 March 1918 |
| AP/74/3 | Unpublished paper, 'Observations upon the normal and pathological histology and bacteriology of the oyster' by W A [William Abbott] Herdman and Rubert Boyce | 1898 |
| AP/74/3/1 | Unpublished manuscript, 'Observations upon the normal and pathological histology and bacteriology of the oyster' by W A [William Abbott] Herdman and Rubert Boyce | 1898 |
| RR/14/55 | Referee's report by Sidney Harris Cox Martin, on a paper 'Observations upon the normal and pathological histology and bacteriology of the oyster' by William Abbott Herdman and Rubert William Boyce | 11 April 1899 |
| RR/14/69 | Referee's report by William Abbott Herdman, on a paper 'A study of the phyto-plankton of the Atlantic' by George Robert Milne Murray and Vernon Herbert Blackman | nd [1898] |
| RR/8/316 | Referee's report by Henry Nottidge Moseley, on a paper 'On the genus Culeolus' by William Abbott Herdman | 29 December 1881 |
| RR/14/54 | Referee's report by Walter Frank Raphael Weldon, on a paper 'Observations upon the normal and pathological histology and bacteriology of the oyster' by William Abbott Herdman and Rubert William Boyce | 8 February 1899 |
| MC/18/90 | Letter from [William Abbott] Herdman, University College, Liverpool, to [Robert William Frederick] Harrison | 12 May 1903 |
| MC/18/91 | Letter from [William Abbott] Herdman, University College, Liverpool, to Sir Michael [Foster] | 1 June 1903 |
| MC/18/92 | Letter from [William Abbott] Herdman, University College, Liverpool, to the Secretary, "Challenger" Committee, The Royal Society | 13 June 1903 |
| MC/16 | Volume 16 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1893-1896 |
| MC/23/5 | Letter from Ernest Howard Adye, Micro-Research Institute of London, 141, Fulham Palace Road, London, to the Secretary of The Royal Society | 11 May 1908 |
| MC/19/410 | Letter from [William Abbott] Herdman, Liverpool, to [Alfred Bray] Kempe | 27 January 1904 |
| MC/19/431 | Letter from [William Abbott] Herdman, The University of Liverpool, to the Royal Society | 17 December 1904 |
| MC/19/416 | Letter from [William Abbott] Herdman, University College, Liverpool, to [Robert William Frederick] Harrison | 28 March 1904 |
| MC/19/421 | Letter from [William Abbott] Herdman, University College, Liverpool, to [Robert William Frederick] Harrison | 7 July 1904 |
| MC/19/414 | Letter from [William Abbott] Herdman, University College, Liverpool, to [Robert William Frederick] Harrison | 13 March 1904 |
| MC/19/411 | Letter from [William Abbott] Herdman, Liverpool, to [Alfred Bray] Kempe | 30 January 1904 |
| MC/19/427 | Letter from [William Abbott] Herdman, The University of Liverpool, to [Robert William Frederick] Harrison | 1 November 1904 |
| MC/19/413 | Letter from [William Abbott] Herdman, Liverpool, to [Robert William Frederick] Harrison | 24 February 1904 |
| MC/19/419 | Letter from [William Abbott] Herdman, Linnean Society, Burlington House, London, to [Robert William Frederick] Harrison | 30 June 1904 |
| MC/19/417 | Letter from [William Abbott] Herdman, Liverpool Marine Biology Committee, University College and Port Erin Biological Station, to [Alfred Bray] Kempe | 15 April 1904 |
| MC/19/408 | Letter from [William Abbott] Herdman, Liverpool, to the Royal Society | 6 January 1904 |
| MC/19/418 | Letter from [William Abbott] Herdman, Liverpool, to [Robert William Frederick] Harrison | 29 April 1904 |
| MC/19/422 | Letter from [William Abbott] Herdman, Liverpool, to [Robert William Frederick] Harrison | 30 September 1904 |
| MC/19/420 | Letter from [William Abbott] Herdman, Liverpool, to Sir Archibald [Geikie] | 4 July 1904 |
| MC/19/428 | Letter from [William Abbott] Herdman, The University of Liverpool, to the Royal Society | 2 November 1904 |
| MC/19/412 | Letter from [William Abbott] Herdman, Liverpool, to [Robert William Frederick] Harrison | 18 February 1904 |
| MC/19/426 | Letter from [William Abbott] Herdman, The University of Liverpool, to [Robert William Frederick] Harrison | 27 October 1904 |
| MC/19/415 | Letter from [William Abbott] Herdman, Liverpool, to [Robert William Frederick] Harrison | 19 March 1904 |
| MC/19/432 | Letter from [William Abbott] Herdman, The University of Liverpool, to [Robert William Frederick] Harrison | 21 December 1904 |
| MC/19/423 | Letter from [William Abbott] Herdman, University of Liverpool, to the Royal Society | 14 October 1904 |
| MC/19/429 | Letter from [William Abbott] Herdman, The University of Liverpool, to the Royal Society | 6 November 1904 |
| MC/19/424 | Postcard from [William Abbott] Herdman, Liverpool, to the Assistant Secretary of the Royal Society, Burlington House, London | 19 October 1904 |
| MC/19/430 | Letter from [William Abbott] Herdman, The University of Liverpool, to the Assistant Secretary of the Royal Society | 25 November 1904 |
| MC/19/670 | Letter from the Secretary of the Pearl Fisheries Limited, 19 St Smithin's Lane, London, to Professor William Abbott Herdman, Zoology Department, University College, Liverpool | 21 March 1904 |
| MC/25/104 | Letter from [William Abbott] Herdman, The University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 8 January 1910 |
| MC/25/105 | Letter from [William Abbott] Herdman, Zoology Department, University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 12 February 1910 |
| NLB/41/729 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society, Liverpool | 15 February 1910 |
| MC/17 | Volume 17 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1897-1899 |
| MC/20/57 | Memorandum from Professor [William Abbott] Herdman, Zoology Department, University College, Liverpool, to the Royal Society | 25 February 1905 |
| MC/20/56 | Memorandum from Professor [William Abbott] Herdman, Zoology Department, University College, Liverpool, to the Assistant Secretaty of the Royal Society | 16 February 1905 |
| MC/29/124 | Letter from [William Abbott] Herdman, The University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 16 December 1914 |
| MC/19 | Volume 19 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1904 |
| MC/18 | Volume 18 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1903 |
| MC/30/88 | Letter from [William Abbott] Herdman, The University of Liverpool, to [Arthur] Schuster, [Royal Society] | 11 December 1915 |
| MC/31/72 | Letter from [William Abbot] Herdman, to the Treasurer of the Royal Society, [Royal Society] | 2 June 1916 |
| MC/31/71 | Letter from [William Abbott] Herdman, University of Liverpool, to the Secretaries of the Royal Society | 30 December 1916 |
| MC/32/196 | Letter from Academie des Sciences, Paris, to William Abbott Herdmann, Foreign Secretary of the Royal Society | 15 September 1917 |
| MC/32/133 | Letter from [William Abbott] Herdman, The University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 20 May 1917 |
| MC/32/131 | Letter from [William Abbott] Herdman, The University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 10 February 1917 |
| MC/32/132 | Letter from [William Abbott] Herdman, The University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 16 February 1917 |
| NLB/54/464 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society and FRS | 21 May 1917 |
| MC/32/135 | Memorandum from [William Abbott] Herdman, Zoology Department, The University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 28 December 1917 |
| MC/33/88 | Letter from [William Abbott] Herdman, Zoology Department, University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 23 November 1918 |
| MC/34/97 | Letter from [William Abbott] Herdman, Liverpool, to Mr [Robert] Harrison, [Royal Society] | 9 February 1919 |
| MC/33/87 | Letter from [William Abbott] Herdman, Zoology Department, University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 18 February 1918 |
| MC/33/86 | Letter from [William Abbott] Herdman, Zoology Department, University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 6 February 1918 |
| MC/33/85 | Letter from [William Abbott] Herdman, Zoology Department, University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 25 January 1918 |
| MC/34/98 | Letter from [William Abbott] Herdman, Liverpool, to [William Bate] Hardy, [Royal Society] | 13 February 1919 |
| NLB/56/472 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society | 18 February 1919 |
| MC/32/130 | Letter from [William Abbott] Herdman, The University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 9 February 1917 |
| MC/32/134 | Letter from [William Abbott] Herdman, Zoology Department, University of Liverpool, to Mr [Robert] Harrison, [Royal Society] | 14 October 1917 |
| MC/36 | Volume 36 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1922 |
| MC/20 | Volume 20 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1905 |
| MC/33/3 | Letter from Arnold Bennett, Head of the French Section of the Department of Propaganda, Ministry of Information, Norfolk Street, Strand, London, W.C.2, to [Professor William Abbott] Herdman, The Royal Society, Burlington House, W.1 | 26 June 1918 |
| MC/23 | Volume 23 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1908 |