From:
Bourchier Wrey Savile
To:
Charles Robert Darwin
Date:
10 Oct 1881
Source of text:
DAR 177: 44
Summary:
Thanks CD for answering his query about evolution.
Contributor:
Darwin Correspondence Project
Showing 1–2 of 2 items
Thanks CD for answering his query about evolution.
There is ‘some gradation in perfection with mammals in the mammery glands’. Discusses milk secretion in Echidna. Instances a fish in which the ova hatch in a sack on the male and the young feed on mucus secreted by the sack lining; ‘here … we see what might be the commencement of a simple mammery gland’.