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From Hubert Airy   8 January 1874

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.

Author:  Hubert Airy
Addressee:  Charles Robert Darwin
Date:  8 Jan 1874
Classmark:  DAR 159: 28
Letter no:  DCP-LETT-9232

From Hubert Airy   13 March 1874

Summary

Has rewritten paper on leaf arrangement after criticism by Royal Society referees. Has found new factor influencing leaf arrangement, i.e., spontaneous variability in the number of vertical leaf-ranks.

Author:  Hubert Airy
Addressee:  Charles Robert Darwin
Date:  13 Mar 1874
Classmark:  DAR 159: 29
Letter no:  DCP-LETT-9357
Document type
letter (2)
Author
Addressee
Correspondent
Airy, Hubert[X]
Darwin, C. R.[X]
Date
1874
01 (1)
03 (1)
letter