Introduces J. P. Lesley, "the most accomplished geologist of the United States".
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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.
Introduces J. P. Lesley, "the most accomplished geologist of the United States".
LA clarifies his opposition to CD’s views, which does not blind him to the great value of CD’s original researches.
Answers CD’s questions regarding sexual coloration of Amazonian fishes and the protuberances on the head of male Geophagus and Cichla during the spawning season [see Descent, pp. 520, 529].
Introduces his son Alexander; believes CD will find him "more tractable" on certain questions than LA himself is.
Thanks LA and sends thanks to A. A. Gould for specimens. Describes principal findings of his research on cirripedes. Is obliged for information Joseph Leidy gave about cirripede eyes. Describes anatomical features and chief aspects of growth. Describes discovery of parasitic males and a species parasitic upon other cirripedes.
Thanks LA for presentation copy of his book, Lake Superior [1850].
Comments on species of cirripedes sent by LA and A. A. Gould.
Thanks LA for presentation copy of Contributions [to the natural history of the United States of America, vol. 1, pt 1: Essay on classification, and vol. 1, pt 2: North American Testudinata (1857)]. Flattered; CD sees there is much of highest interest to him.
Sends copy of Origin.
Thanks LA for Methods of study [1863].
Is gratified that he has not taken a personal dislike to CD, though he is strongly opposed to nearly everything CD has written.
Has enjoyed reading LA’s book [Études sur les glaciers (1840)].
Hopes LA will pardon manner in which CD has alluded to his work on glaciers in his Journal of researches, of which he sends a copy.
Thanks LA for information on sexual differences in the coloration of Amazonian fish. CD was anxious to know how the sexes differed because they are unusual in that the male has the largest share in looking after ova and young.