To J. S. Burdon Sanderson 27 August 1873
Down, | Beckenham, Kent.
Aug 27. 1873
My dear Dr Sanderson
I have returned home & have been very unwell, otherwise I shd have written sooner to tell you that there are, or very soon will be, some good leaves on Dionæa, in case you are still inclined to investigate electric currents in them.1
It seems to me a point well worth investigating, but you can judge far better than I can. If you determine to make the trial, I think that I can send the plants to you safely carried by hand.
I presume that the apparatus is cumbrous & that it wd waste more of your time to come here, otherwise I should be delighted to see you at Down.2
I shall not try many more experiments on Drosera or Dionæa, for I have not knowledge enough; but I must tell you that minute drops of Sol. of Carb. of Soda entirely stops the action of the viscid & acid secretion of Drosera on cubes of Albumen; but afterwards, by putting a little weak Hydrochloric acid on the same leaves, the albumen is dissolved, so that the action seems like one of true digestion.3
Believe me | yours very sincerely | Ch. Darwin
Footnotes
Bibliography
Insectivorous plants. By Charles Darwin. London: John Murray. 1875.
Summary
CD can provide leaves of Dionaea if JSBS wishes to investigate electric currents in them.
His experiments show that the digestive action of Drosera seems like that of true digestion.
Letter details
- Letter no.
- DCP-LETT-9029
- From
- Charles Robert Darwin
- To
- John Scott Burdon Sanderson, 1st baronet
- Sent from
- Down
- Source of text
- National Library of Scotland (MS.6103 ff.101)
- Physical description
- LS 3pp
Please cite as
Darwin Correspondence Project, “Letter no. 9029,” accessed on 18 April 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-9029.xml
Also published in The Correspondence of Charles Darwin, vol. 21