Summary

Asks whether Crustacea from temperate parts of the Southern Hemisphere are more strongly analogous to those in same latitudes of the Northern Hemisphere than are Arctic to Antarctic Crustacea.

Discusses astonishing finds of mammalian and reptilian remains in Purbeck beds; notes reactions of Lyell.

Has doubts about Richard Owen’s recent classification of mammals [J. Proc. Linn. Soc. Lond. (Zool.) 2 (1858): 1–37].

Works away [on Natural selection].

Asa Gray has given valuable assistance.

Summary

Again thanks CD for trouble in arranging for translation of Für Darwin.

Sends addition answering critics of his idea of insect metamorphosis [see Möller ed. 1915–21, 1: 259].

Agrees with Charles Lyell’s suggested English title "Facts and arguments in favor of Darwin", although perhaps more accurate to call it "Darwinism tested by Carcinology" or "Carcinology as bearing on the origin of species".

Says any profit should go to CD for his trouble and expense with the translation.

Thanks for seeds of Eschscholtzia.

Gives observations on number of climbing plants, including Dilleniacea, Marantacea, Catasetum.

Summary

Offers HM-E some specimens of Lernaea, a crustacean parasite on Balanus elongatus.

Mentions opinion of Harry Goodsir about a form CD believes to be the larva of Lernaea.

Summary

Has read and admires FM’s work on species.

Observations on Crustacea are good and original; asks FM to dissect and check some of CD’s observations on cirripedes.

Has sent "Climbing plants" paper [J. Proc. Linn. Soc. Lond. 9 (1865): 1–118] and would like to send Orchids.

Summary

CD returns a paper he has received through [G. B.?] Sowerby. He wishes he could persuade his correspondent to publish papers on such subjects. The series on brachiopods was very striking.

Summary

Quotes information from Dr Power on colour of sexes of Crustacea in Mauritius [see Descent 1: 335].

Summary

Thanks for copy of Claus’s book, Untersuchungen zur Erforschung der genealogischen Grundlage des Crustaceen-Systems: ein Beitrag zur Descendenzlehre (Studies on the investigation of the genealogical foundation of the Crustacea: a contribution to the theory of descent; Claus 1876).

Summary

Has signed a paper [unspecified];

thanks HW for his interesting letter and kind expressions about himself and his son.

Summary

A case of fighting in crabs (Portunus puber against Carcinus maenas) [see Descent 1: 332].

Summary

Pleased by CD’s letter; his object was to apply CD’s principles to the reform of zoology. When this is done, it is wonderful to see how improved one’s understanding of the Crustacea (Arthropoda) becomes. Cites examples.