[Letter, Charles R. Darwin to John Burdon-Sanderson, October 9, 1874 page 4]

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Description: Charles Darwin, Down to John Burdon-Sanderson. Wants to know if fibrin, areolar tissue, gelatin and other substances are allied in any way because they affect Drosera in a similar way. [Reply follows] Burdon-Sanderson suggests that the similarities may be due to the water solubility of certain substances. A.L.S. 1 p.

Transcript: that the diffc may be dependent on the ? that the former one used in a prepared i.e. washed over the ? as a crude i.e. un-worked consequently heat in the latter heterogeneous stuff soluble in water (? water extractive) is present, as the former absent – and ? in as much as the first ? for chemical excelator is ?? excel? material should be soluble. This may explain the difference – I think it probable that thoroughly worked meat would act less exciting than less worked.

Creator: Darwin, Charles, 1809-1954

Date Created: 1874-10-09

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/ref/collection/darw...

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Owner: UBC Library Digitization Centre
Source: Flickr Commons
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