From George Henslow 13 April 1868
St Johns Parsonage | St Johns Wood
13/4/68
Dear Mr Darwin,
I have delayed writing, in order to have an opportunity of reading M. De Candolle’s paper for which let me give you very many thanks, & which I hope to return carefully in a short time.1 He has proved algebraically from assumed mathematical principles, analogous to the arrangt of leaves in nature, that the series of fractions are really convergents of a continued fraction,—as long since stated. (as M. Decandolle says, but not proved,) by Messrs Schimper & Braun 1838.2 This nothing whatever to do with my investigations though it is a corroboration of certain parts.
Please to thank Mrs (?) Darwin for kindly writing about the lectures in the N. of England. I have written to Miss Clough & offered my services; as I shall be very happy to give a course of lectures as proposed.3
With kind regards believe me | yrs very truly | Geo: Henslow
Footnotes
Bibliography
Candolle, Casimir de. 1865. Théorie de l’angle unique en phyllotaxie. Bibliothèque universelle et revue Suisse. Archives des sciences physiques et naturelles 23: 199–212.
Clough, Blanche Athena. 1897. A memoir of Ann Jemima Clough. London: Arnold.
Correspondence: The correspondence of Charles Darwin. Edited by Frederick Burkhardt et al. 29 vols to date. Cambridge: Cambridge University Press. 1985–.
DSB: Dictionary of scientific biography. Edited by Charles Coulston Gillispie and Frederic L. Holmes. 18 vols. including index and supplements. New York: Charles Scribner’s Sons. 1970–90.
Summary
Thanks for Casimir de Candolle’s paper ["Théorie de l’angle unique en phyllotaxie", Arch. Sci. Phys. & Nat. 23 (1865): 199–212].
Letter details
- Letter no.
- DCP-LETT-6115
- From
- George Henslow
- To
- Charles Robert Darwin
- Sent from
- St John’s Wood
- Source of text
- DAR 166: 166
- Physical description
- ALS 3pp
Please cite as
Darwin Correspondence Project, “Letter no. 6115,” accessed on 24 April 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-6115.xml
Also published in The Correspondence of Charles Darwin, vol. 16