Reference number | Title | Date |
RR/16/358 | Referee's report by Dukinfield Henry Scott, on a paper 'Some observations on welwitschia mirabilis hook-f' by Professor Henry Harold Welch Pearson | 28 October 1905 |
NLB/40/172 | Copy letter from Archibald Geikie to Professor Karl Pearson FRS | 27 April 1909 |
NLB/39/102 | Copy letter from Robert William Frederick Harrison to Professor H [Henry] H [Harold] W Welch] Pearson | 25 November 1908 |
RR/17/334 | Referee's report by Dukinfield Henry Scott, on a paper 'Further observations on Welwitschia' by Henry Harold Welch Pearson | 21 September 1908 |
RR/17/335 | Referee's report by Francis Wall Oliver, on a paper 'Further observations on Welwitschia' by Henry Harold Welch Pearson | November 1908 |
NLB/62/236 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 9 January 1922 |
EC/1916/15 | Pearson, Henry Harold Welch: certificate of election to the Royal Society | |
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 |
MC/23/420 | Letter from [Albert Charles] Seward, Botany School, Cambridge, to Sir Archibald [Geikie], [Royal Society] | 13 June 1908 |
RR/16/359 | Referee's report by Francis Wall Oliver, on a paper 'Some observations on welwitschia mirabilis, hook-f' by Professor Henry Harold Welch Pearson | December 1905 |
MC/23/419 | Letter from [Albert Charles] Seward, Botany School, Cambridge, to Sir Archibald [Geikie], [Royal Society] | 24 January 1908 |
MC/23/422 | Letter from [Albert Charles] Seward, Botany School, Cambirdge, to Mr [Robert] Harrison, [Royal Society] | 13 November 1908 |
MC/23/421 | Letter from [Albert Charles] Seward, Botany School, Cambirdge, to Mr [Robert] Harrison, [Royal Society] | 28 July 1908 |
MC/24/157 | Letter from [Albert Charles] Seward, Botany School, Cambridge, to Mr [Robert] Harrison, [Royal Society] | 5 March 1909 |
MC/31/147 | Letter from [Henry Harold Welch] Pearson, Botanical Laboratory, South African College, Cape Town, to The Secretaries, The Royal Society, Burlington House, London | 12 June 1916 |
MC/31/189 | Letter from [Albert Charles] Seward, Botany School, Cambridge, to [Robert] Harrison, [Royal Society] | 6 December 1916 |