Is honoured by CGS’s dedication [see 10942].
His observation of the dorsal eyes of Onchidium is interesting and surprising.
Showing 1–9 of 9 items
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.