From:
Charles Robert Darwin
To:
Thomas Lauder Brunton, 1st baronet
Date:
3 Dec 1873
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:
Is interested in comparative nutritive values of chondrin and gelatin. The former seems to excite Drosera more, though albumen does so to a higher degree than either. Also asks if chlorophyll is digested by animals; Drosera digests it hardly at all.
Contributor:
Darwin Correspondence Project