Remarks on his work on Pinguicula. Notes its digestive power; it absorbs nutritious matter from leaves and seeds as well as insects.
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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.
Remarks on his work on Pinguicula. Notes its digestive power; it absorbs nutritious matter from leaves and seeds as well as insects.
Received CD’s note late and so could not comply, but promises to vote in future for anyone CD recommends for Athenaeum.
Will have new evidence on dog’s intelligence sent to CD.
Sends observations of poison acting on glands of Drosera. Poison acts as a stimulant to protoplasm. Very remarkable that poison acts so differently on the cilia and protoplasm of Drosera.
Reports on his examination of the dried specimens of Pinguicula at Kew to answer CD’s query whether all species secrete.
Action of cobra poison.
Wants particularly to know whether seeds or leaves of other plants are ever found adhering to the leaves of Pinguicula. Observations would perhaps best be made in a month or two.
Thanks for letter and seeds.
Asks that Hooker return references about plants eating insects.
Discusses Pinguicula.
Identifies seeds adhering to leaves of Pinguicula [see Insectivorous plants, p. 369].
Is delighted to hear that Pinguicula and Drosera digest fibrin. Suggests diluting gluten in weak hydrochloric acid to remove starch. Enamel was nearly digested [by Drosera] overnight. Would like to try separating the digestive ferment of Pinguicula.
Describes voyage to New Zealand.
Thanks for letter. CD’s nephew got into the club. The book about the beaver is probably that by Mr Morgan. Does not intend to publish further on the intelligence of the dog.
Her memorial has passed and her civil list pension has been increased to £100 per annum for life.
Dr Johnson of Shrewsbury has R. W. Darwin letters.
Requests live Utricularia and Drosophyllum at suggestion of W. T. Thiselton-Dyer.
Thanks for Sarracenia, which is as wonderful as any orchid.
Asks AG to observe Pinguicula.
Has read AG’s semi-theological review [Nation 18 (1874): 348–51] with interest
and has obtained the book [C. Hodge, What is Darwinism? (1874)].
Reports on results of experiments on effect of cobra poison on animal cilia and muscle.
Describes how Pinguicula captures insects.
Thanks for letter on Erica tetralix.
Identification of leaves digested by Pinguicula.
Must stop work on "bloom" and leaf movements if he is ever to get anything published on Drosera, etc.
Sends thanks for seeds. Encloses memorandum in case WTT-D wishes to communicate information to Royal Horticultural Society. Has not time to prepare article.
Discusses condition of plants borrowed from Kew.