Discusses plants to be sent to Kew.
Thanks for letter about Trifolium
and for R. I. Lynch’s observations on sleep of Erythrina.
Mentions letter from F. J. Cohn, dealing with discovery by Francis Darwin, that CD has had printed in Nature ["The contractile filaments of the teasel", Nature 16 (1877): 339; Collected papers 2: 205–7].