Instances of sexual differences in viviparous fishes, suggested by reading chapters on sexual selection [in Descent] and by Mivart’s Genesis of species.
Notes on echinoderms.
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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.
Instances of sexual differences in viviparous fishes, suggested by reading chapters on sexual selection [in Descent] and by Mivart’s Genesis of species.
Notes on echinoderms.
Believes his letter of 17 Apr bears also on vol. 1 of Descent.
Ability to move ears is common in his family.
Similarity of foot of man to that of gorilla continues beyond foetal stage.
Invites CD to stay overnight if visiting the area.
Thanks for his election to the Austrian Imperial Academy.
Is sorry ES has suffered in health.
Discusses homologies in various animal groups.
Comments on Mivart [Genesis of species].
Comments on CVR’s book [Third annual report on the noxious, beneficial, and other insects of the State of Missouri (1871)].
Discusses mimetic insects.
Instance of a dog able to discriminate a note played out of tune. [See Descent, 2d ed., p. 569.]