From Robert McLachlan 23 April 1877
Summary
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.
Author: | Robert McLachlan |
Addressee: | Charles Robert Darwin |
Date: | 23 Apr 1877 |
Classmark: | DAR 171: 1 |
Letter no: | DCP-LETT-10939 |
From Robert McLachlan 13 March 1879
Summary
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.
Author: | Robert McLachlan |
Addressee: | Charles Robert Darwin |
Date: | 13 Mar 1879 |
Classmark: | DAR 171: 2 |
Letter no: | DCP-LETT-11930 |
From Robert McLachlan 21 February 1868
Summary
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.
Author: | Robert McLachlan |
Addressee: | Charles Robert Darwin |
Date: | 21 Feb 1868 |
Classmark: | DAR 86: A8–9, DAR 82: A88–9 |
Letter no: | DCP-LETT-5910 |
From Robert McLachlan 24 February 1868
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].
Author: | Robert McLachlan |
Addressee: | Charles Robert Darwin |
Date: | 24 Feb 1868 |
Classmark: | DAR 82: A86–7 |
Letter no: | DCP-LETT-5924 |
From Robert McLachlan 20 February 1871
Summary
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.
Author: | Robert McLachlan |
Addressee: | Charles Robert Darwin |
Date: | 20 Feb 1871 |
Classmark: | DAR 89: 79–80 |
Letter no: | DCP-LETT-7498 |
letter | (5) |
Darwin, C. R. | (5) |
Darwin, C. R. | (5) |
McLachlan, Robert | (5) |