From:
William Bowman, 1st baronet
To:
Charles Robert Darwin
Date:
24 July 1872
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:
F. C. Donders coming to congress. Wants to arrange visit.
Contributor:
Darwin Correspondence Project
F. C. Donders coming to congress. Wants to arrange visit.
Responds to CD’s comments on his MS on phyllotaxy.
The initial variation required by his theory would be a slight twist of the bud-axis; believes the frequent twisting of stems and branches renders such a variation possible.
Admits he placed too much emphasis on the importance of frost. He should have spoken more generally of "vicissitudes of climate".