Thanks for letter and book [J. R. L. Delboeuf, La psychologie (1876)].
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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.
Thanks for letter and book [J. R. L. Delboeuf, La psychologie (1876)].
Thinks conservation of energy not evidence for Deity. Agrees with CD that there is little hope to illuminate subject with light of intellect. Intends to drop it.
Sets out some of his ideas on the effects of disuse on an organ. Disuse as a cause of reduction.
Encloses a copy of a letter from H. Spencer giving his opinion on GJR’s views on disuse and a draft of GJR’s reply to Spencer.
Would like to see papers [on potato grafting] mentioned by CD.
CD has doubtless seen case in Gardeners’ Chronicle of vine in which scion has affected the stock [P. Grieve, "Singular sport upon a grape vine", Gard. Chron. (1875): 21].
Returns papers [unidentified].
One on inheritance destitute of meaning. How can "force" act without any material on which to act? Discussion must assume truth of some such theory as Pangenesis.