skip to content

Darwin Correspondence Project

Search Results

Darwin Correspondence Project
Search:
"Darwin C R" in search-correspondent disabled_by_default
McLachlan, Robert in author disabled_by_default
5 Items
Sorted by:  
Page: 1

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

thumbnail

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

thumbnail

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
Document type
letter (5)
Author
McLachlan, Robertdisabled_by_default
Addressee
Correspondent
Date
1868 (2)
1871 (1)
1877 (1)
1879 (1)