Is honoured by CGS’s dedication [see 10942].
His observation of the dorsal eyes of Onchidium is interesting and surprising.
Showing 1–16 of 16 items
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.
Is honoured by CGS’s dedication [see 10942].
His observation of the dorsal eyes of Onchidium is interesting and surprising.
Thanks for CGS’s work [“Über Schneckenaugen” (1877)].
Offers to give CGS a writing machine.
Pleased CGS will accept machine.
Discusses views of Moritz Wagner on modification of species. Two different cases: one in which a species is modified in the same country and cases in which a species splits. Glad CGS is taking up subject.
Discusses effect of isolation on species modification and the views of Moritz Wagner on the subject.
Gives CGS permission to use his letters in any way he thinks fit.
Discusses the direct effect of external conditions as an agent of change in organisms; has encountered many cases since the publication of Origin.
Discusses CGS’s account of Pellew Islands. Still believes atolls and barrier reefs in Pacific indicate subsidence. But cases like Pellew Islands, if frequent, would make his conclusions of little value.
Asks for information about the title and date of Semper’s essay disputing CD’s theory of coral reefs.
Explains why he did not add his photograph to the album presented by German naturalists to CD. Instead he wishes to dedicate to CD his work on the vertebrate-type eyes on the back of some Mollusca. [Enclosed is a MS introduction to this work, Über Sehorgane von Typus der Wirbelthieraugen auf dem Rücken von Schnecken.].
Sends work on dorsal eyes of Onchidium ["Über Schneckenaugen", Arch. Mikrosk. Anat. 14 (1877): 118–24]. Comments on work.
Thanks CD for his kind letter and accepts his offer of a writing machine.
Thanks CD for writing machine.
Recalls visit by CD’s son [Francis].
Asks whether he may use CD’s letters in his work [Die natürlichen Existenzbedingungen der Thiere (1880)] in order to show that Moritz Wagner has misrepresented CD’s views.
Discusses the influence of isolation and external conditions on animals, and the relative importance of the direct effect of external conditions and of selection in bringing about change.
Discusses coral reefs
and encloses a copy of his "Reisebericht" [Z. Wiss. Zool. 13 (1863): 538–70], as requested by CD.
Comments on G. H. Lewes’s book [The life and works of Goethe (1855)].