Sends HA’s paper ["On leaf arrangement"] with a supporting note [from CD] to Royal Society.
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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Sends HA’s paper ["On leaf arrangement"] with a supporting note [from CD] to Royal Society.
Has sent phyllotaxy paper to G. G. Stokes with the letter from CD to show credentials.
Will not have time to read new Sachs edition CD offered.
Thanks for CD’s sponsorship of paper [Proc. R. Soc. Lond. 21 (1873): 176–9].
Thanks for congratulations on appearance of abstract of HA’s paper [Nature 7 (1873): 343–4].
Explains again his theory of "contraction with twist" by which compact buds and a spiral phyllotaxy have evolved. Explains how the peculiar phyllotaxy of the teasel is explicable by this process of "condensation".
The Royal Society referees have rejected HA’s phyllotaxy paper, and it will not be printed in Philosophical Transactions. HA is not sorry for he has found new facts which limit the applicability of his views. Now believes that the original leaf arrangement was not necessarily always two-ranked but rather that existing arrangements have developed from a variety of forms with differing numbers of leaf-ranks.
Illustrates, with reference to different species of Gasteria, the role of twisting in the development of leaf arrangement.
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.
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.