Thanks for the paper on Sterrha (McLachlan 1865).
Thanks for the paper on Sterrha (McLachlan 1865).
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].
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 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.
About John Hampden.
Asking MacLachlan to return unopened to Hampden the next two or three letters received from him.
Sending 100 copies of a reply to Hampden, to be distributed at a Society.
ARW has acted on Dunning's advice (re. Hampden).
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.
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.]
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.
Seeking species or well marked varieties of Neuroptera, for work on peculiar animal forms.
About specimens for his cousin Charles Wilson, in south Australia.
Thanks for kindness in writing to Mr Lichtenstein. ARW has written to the Agent General for S Australia who has promised to send the French Report(s).
Asks McLachlan to look over the enclosed proof on British Insects - Lepidoptera.
Thanks McLachlan for his suggestions.
ARW is willing to give a lecture on "The Biological Relations of New Zealand and Australia".
About abbreviations on labels.
Asking for suggestions and alterations for a new edition of Island Life.