Discusses concept of intelligence in his Earthworms manuscript.
Remarks on GJR’s work on echinoderms.
Comments on Wilhelm Roux [Der Kampf der Theile im Organismus (1881)].
Discusses animal instincts, citing Fabre’s description of sand-wasps.
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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.
Discusses concept of intelligence in his Earthworms manuscript.
Remarks on GJR’s work on echinoderms.
Comments on Wilhelm Roux [Der Kampf der Theile im Organismus (1881)].
Discusses animal instincts, citing Fabre’s description of sand-wasps.
Looks forward to reading CD’s Earthworms.
Agrees that habits of sand-wasp are determined by natural selection.
Experiment of exposing plants to flashing light gives uncertain result.
Discusses GJR’s experiments on heliotropism in plants; views of Philippe van Tieghem and Julius von Wiesner. Describes his own experiments.
Mentions his letter on vivisection [to Frithiof Holmgren, see 13115] in the Times [18 Apr 1881].
Only more sensitive seedlings respond to flashing light.
CD’s letter to Times ["On vivisection", 22 Apr 1881] in every way admirable.
GJR to be Zoological Secretary of Linnean Society.
Has decided on arrangement of material for his books Animal intelligence [1882]
and Mental evolution in animals [1883].
Comments on GJR’s letter in the Times [25 Apr 1881] concerning vivisection. Mentions activity of anti-vivisectionists, G. R. Jesse and F. P. Cobbe.