Discusses books returned
and invites him to Down for a few days.
Showing 1–7 of 7 items
Discusses books returned
and invites him to Down for a few days.
Asks that A. d’Orbigny’s geological map of S. America be sent to him with a card of the Society’s evening meetings.
Queries on ratios of species to genera on southern islands. CD’s observations on distribution of Galapagos organisms, and on S. American fossils, and facts he has gathered since, lead him to conclusion that species are not immutable; "it is like confessing a murder".
Discusses sending HD lice specimens. Asks him to check with G. R. Waterhouse.
Delighted to be able to contribute Infusoria to ED’s "great countryman Ehrenberg". Includes a list of eight substances from his collection described in detail, which Ehrenberg might find useful in his researches.
C. G. Ehrenberg would like some earth from Galapagos, Tierra del Fuego, and the Falklands; wishes to hunt for Infusoria.
Remarks on geographical divisions of the flora of the Southern Hemisphere.
JDH beginning Galapagos plants. Value of studying insular floras with respect to inquiries about adaptation of species.