From:
Hubert Airy
To:
Charles Robert Darwin
Date:
8 Jan 1874
Source of text:
DAR 159: 28
Summary:
W. J. Beal’s paper ["Phyllotaxis of cones", Am. Nat. 7 (1873): 449–53] shows incompleteness of HA’s theory, but does not invalidate his basic principles on origin of leaf arrangement or the broad applicability of the theory.
Contributor:
Darwin Correspondence Project
