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.
Down. | Bromley. | Kent. S.E..
My dear Sir
It was my slip of the pen; & I remember that I had just before writing been reading about Ephemera.—
I am particularly obliged for the facts about the hybrids; I had been considering Walsh (& Bates (?)) view that these organs played an important part in keeping incipient species distinct, & I felt so little satisfied that I had just resolved not to notice this view; & now you have given me solid grounds for rejecting it:— Many thanks.—
For the chance of your liking to have a copy of my book on
``Variation under Domestication'', I have told M
My dear Sir | Yours sincerely | Ch. Darwin
- f1 5934b.f1See letter from Robert McLachlan, 24 February 1868 and n. 2.
- f2 5934b.f2See letter from Robert McLachlan, 24 February 1868 and. n. 5. CD refers to Benjamin Dann Walsh and Henry Walter Bates. Walsh's views on the use of abdominal organs in male insects are reported in Descent 1: 341--2.
- f3 5934b.f3McLachlan's name appears on CD's presentation list for the second printing of Variation (see Correspondence vol. 16, Appendix IV). CD refers to his publisher, John Murray.