To Robert McLachlan 12 March [1879]
Summary
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.]
Author: | Charles Robert Darwin |
Addressee: | Robert McLachlan |
Date: | 12 Mar [1879] |
Classmark: | Superior Galleries (dealers) (28–31 January 1990) |
Letter no: | DCP-LETT-11927A |
To Robert McLachlan 23 March [1866]
Summary
Thanks for the paper on Sterrha (McLachlan 1865).
Author: | Charles Robert Darwin |
Addressee: | Robert McLachlan |
Date: | 23 Mar [1866] |
Classmark: | Raab Collection (dealer) (June 2014) |
Letter no: | DCP-LETT-5038F |
To Robert McLachlan 25 February [1868]
Summary
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.
Author: | Charles Robert Darwin |
Addressee: | Robert McLachlan |
Date: | 25 Feb [1868] |
Classmark: | Smithsonian Libraries and Archives (Dibner Library of the History of Science and Technology) |
Letter no: | DCP-LETT-5934B |
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 |
Darwin, C. R. | (5) |
McLachlan, Robert | (3) |