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To Edward Frankland 21 September [1873]
Summary
Although CD’s experiments with pepsin were unsuccessful, he observed that the glands [of Drosera] as far as acid is concerned act just as the stomach of a mammal. Further experiments detailed. The secretion must contain something analogous to pepsin. [See 9062.]
Author: | Charles Robert Darwin |
Addressee: | Edward Frankland |
Date: | 21 Sept [1873] |
Classmark: | The John Rylands Library, The University of Manchester |
Letter no: | DCP-LETT-9061A |
To Edward Frankland 23 September 1873
Summary
Will follow EF’s suggestions as to securing purity of fibrin.
Author: | Charles Robert Darwin |
Addressee: | Edward Frankland |
Date: | 23 Sept 1873 |
Classmark: | The John Rylands Library, The University of Manchester |
Letter no: | DCP-LETT-9064A |
To Edward Frankland 29 September 1873
Summary
Is sending washings of 445 leaves in EF’s distilled water with 20 grains of carbonate of soda. Details of the difficulties and complications involved.
Author: | Charles Robert Darwin |
Addressee: | Edward Frankland |
Date: | 29 Sept 1873 |
Classmark: | The John Rylands Library, The University of Manchester |
Letter no: | DCP-LETT-9077A |