Informs CD of the effects of certain salts and other chemicals on animals.
Comments on CD’s results with Drosera. Suggests some experiments.
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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Informs CD of the effects of certain salts and other chemicals on animals.
Comments on CD’s results with Drosera. Suggests some experiments.
A hasty answer to CD’s letter [8987] of 25 July. Mentions Dr Osler’s observations on behaviour of colourless blood corpuscles in solutions of sodium and potassium salts of same strength.
Answers CD’s questions of 25 July [8987] about temperatures at which cold-blooded animals are killed.
Doubts heat rigor was induced in Drosera. Gives his view of the relation of excitability to increase in temperature.
Suggests experiment to show that electrical changes in plant are the same as in animal muscle and nerve [see Insectivorous plants, p. 318].