File:Letter, Charles R. Darwin to John Burdon-Sanderson, August 15, 1873 page 2 (14474609513).jpg

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English: No known copyright restrictions. Please credit UBC Library as the image source. For more information, see digitalcollections.library.ubc.ca/cdm/about.


Description: Charles Darwin, Bassette, Southampton to John Burdon-Sanderson. Suggests that Burdon-Sanderson test to see if there is any electrical charge in the leaves of Dionaea when they are excited and offers to provide the plants. A.L.S., 1 p.

Transcript: say about heat rigor. I should think that it would be extremely interesting to ascertain whether there is any electrical change in the leaves of Drosera when they are excited; but I should think Dionaea would be much better for the purpose. As far as I can imperfectly make out the lower surface of the leaf in Dionaea, and of the tentacles (i.e. ? tions of the leaf) of Drosera is always in a state of tension, but is over mastered by the contraction of the upper surface alone. Therefore I imagine that the

Creator: Darwin, Charles, 1809-1922

Date Created: 1873-08-15

Source: Original Format: University of British Columbia Library. Woodward Biomedical Library. Charles Woodward Memorial Room. The Darwin-Burdon-Sanderson Letters.

Permanent URL: digitalcollections.library.ubc.ca/cdm/compoundobject/coll...
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Source https://www.flickr.com/photos/ubclibrary_digicentre/14474609513/
Author UBC Library Digitization Centre
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18 June 2014

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