Asks RMcL to correct the proper names in enclosed proof of a letter from Fritz Müller to be published in Nature. CD has no book with names of Trichoptera. [See 11930.]
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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.
Asks RMcL to correct the proper names in enclosed proof of a letter from Fritz Müller to be published in Nature. CD has no book with names of Trichoptera. [See 11930.]
Thanks for the paper on Sterrha (McLachlan 1865).
Is obliged for the facts about the hybrids [see 5910], which permit him to reject the view of B. D. Walsh (and H. W. Bates?) that organs play an important part in keeping incipient species distinct.
He has asked John Murray to send RM a copy of Variation.
Thanks CD for helping his successful candidacy for F.R.S.
He is working up Arctic insects. Bombus is found at 83° N., as far north as has been reached.
Returns to CD a corrected proof [of "Fritz Müller on a frog having eggs on its back", Nature 19 (1878–9): 462–4].
Discusses adaptations of the pupae of, and Fritz Müller’s work on, Trichoptera.
On numerical proportions of sexes in insects; coloration. Dimorphism in dragonflies (Agrion) in which usual coloration is reversed in sexes [see Descent 1: 362–4].
Wallace seems to ride his hobby too hard.
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].
Thanks for Descent; will forward any information he has after he has studied it.
Instance of inequality in left and right anal appendices of caddis-fly.