Comments on CD’s observations on his address; clarifies his view of the importance of isolation, the effect of climate, the plants of S. Africa and Australia.

Sends specimens of Boronia.

Discusses the section on diclinous trees and herbs in CD’s new book [Cross and self-fertilisation, pp. 411–13]. CD’s theory that diclinism preceded hermaphroditism seems confirmed.

Believes Aegiphila to be exclusively American.

Contrasts fertilisation of Australian Acacia with Brazilian Mimosa.

Thanks CD for Forms of flowers. Comments on the chapter on cleistogamic flowers; offers some corrections.

Answers CD’s query on "bloom".

CD’s election to the French Academy delights GB. Nationalistic prejudices have at last been overcome; congratulates him on what is now universal adoption of his views.

Has been at work on Orchideae for Genera plantarum and has found CD’s Orchids wonderfully useful. Comments on some problems of botanical terminology.

Pleased to sign certificate for Francis Darwin.

Has never underrated importance of [plant] physiological studies, especially when carried out as FD has been doing.