From:
Charles Robert Darwin
To:
George John Romanes
Date:
[15 June 1876 or later]
Source of text:
American Philosophical Society (Mss.B.D25.495)
Summary:
Describes discovery by his son [Francis Darwin] of protoplasmic filaments extending from small glands in the leaves of Dipsacus [see Proc. R. Soc. Lond. 26 (1877): 4–8].
Contributor:
Darwin Correspondence Project