Summary

AG is writing notice of American edition of Variation [Nation 6 (1868): 234–6].

Pangenesis is "as good an hypothesis as one can now make".

Summary

Responds to CD’s queries on polygamy in birds and orang.

Discusses sexual selection and secondary characters; colours and sexual preference.

Expresses his admiration for Pangenesis; it is superior to Herbert Spencer’s theory.

ARW differs somewhat with CD’s chapter on causes of variability [ch. 22 in Variation]. Thinks several of CD’s arguments are unsound.

Briefly discusses how natural selection might aid in producing sterility between allied species.

Summary

Second issue [of Variation] is ready.

Murray thinks that the Athenæum review was written by J. E. Gray [see 5931].

Summary

Reports that when August Meyer confined several distinct species of Phryganeidae they coupled and produced fertile ova, indicating that some specific characters are not so important so far as reproduction is concerned [see Descent 1: 342 n. 2].

Summary

Has difficulty translating Piderit’s use of verbissen.

Will hold F. Müller’s book until CD decides about translating it.