From:
Charles Robert Darwin
To:
Daniel Oliver
Date:
17 Oct [1860]
Source of text:
DAR 261.10: 18 (EH 88206002)
Summary:
Thanks for information and extracts.
M. A. Curtis, quoted in ["Dionaea"] Penny encyclopedia [(1837) 8: 508], gives the only full account of Dionaea.
Concurs in DO’s explanation of Dionaea footstalk cells, which CD took for stomata.
Is using carbonate of ammonia as a substitute for flies and colour change in glands as index of action on Drosera. Suspects other nitrogenous compounds do not act till decomposed into carbonate of ammonia. Beginning to write Drosera paper. Action of nitrogenous compounds.
Contributor:
Darwin Correspondence Project