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To J. S. Burdon Sanderson   29 March 1873

Summary

Reports that he has not received JSBS’s book on histology and physiology [Sanderson ed., Handbook for the physiological laboratory (1873)], which Edward Emmanuel Klein told CD’s son was to be sent. He asks for information so that he may thank Dr Klein. [Klein and Michael Foster were co-authors with JSBS.]

He has returned the Gazette to Dr T. L. Brunton. [See 8825.]

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  29 Mar 1873
Classmark:  DAR 147: 406
Letter no:  DCP-LETT-8829A

To J. S. Burdon Sanderson   24 June 1873

Summary

Wishes JSBS to look over an abstract of his Drosera experiments and to answer some questions on it.

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  24 June 1873
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-10)
Letter no:  DCP-LETT-8948

To J. S. Burdon Sanderson   26 June [1873]

Summary

Would welcome JSBS visit to discuss Drosera. Nitrogenous fluids can act as ferments only if they act merely by exciting molecular movement in adjoining molecules.

Glass and cotton excite movement and cause cell contents to change visibly. Huxley coming to see this phenomenon.

Studied effect of poisons 12 or 15 years ago to see whether the action was similar to that on nervous tissue.

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  26 June [1873]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-08)
Letter no:  DCP-LETT-8952

To J. S. Burdon Sanderson   25 July 1873

Summary

Describes his recent work on Drosera digestion of organic materials, e.g., albumen and gelatin. Edward Frankland has given CD a rough test for pepsin. Some plant extracts cause as much inflection as meat. Has found some reversible inflection with heat and perhaps some heat rigor. Has measured the extreme sensitivity of Drosera with very dilute solution of ammonium phosphate.

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  25 July 1873
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-11)
Letter no:  DCP-LETT-8987

To J. S. Burdon Sanderson   15 August 1873

Summary

Thinks it would be worth while testing for electrical changes in the leaves of insectivorous plants.

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  15 Aug 1873
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-13)
Letter no:  DCP-LETT-9013

To J. S. Burdon Sanderson   27 August 1873

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.

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  27 Aug 1873
Classmark:  National Library of Scotland (MS.6103 ff.101)
Letter no:  DCP-LETT-9029

To J. S. Burdon Sanderson   9 September [1873]

Summary

Pleased JSBS has decided to work on Drosera; sends plants. Does not know whether thermo-electric pile could detect temperature change when leaves close.

CD’s experiment with very weak hydrochloric acid repeated with success: the plants digest albumen more quickly.

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  9 Sept [1873]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-14)
Letter no:  DCP-LETT-9047

To J. S. Burdon Sanderson   13 September [1873]

Summary

Thanks JSBS for telegraphing his results, which seem very remarkable; feels he should now try Drosera.

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  13 Sept [1873]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-15)
Letter no:  DCP-LETT-9055

To J. S. Burdon Sanderson   14 September [1873]

Summary

Very pleased at JSBS’s discovery ["On the electrical phenomena which accompany the contractions of the leaf of Dionaea muscipula", Rep. BAAS 43 (1873): 133].

Asks for pure animal substances [proteins] for Drosera experiments. His other sources have been T. L. Brunton, Edward Frankland, W. A. Miller (now dead), and Hoffmann of Berlin [A. W. von Hofmann?].

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  14 Sept [1873]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-9)
Letter no:  DCP-LETT-9056

To J. S. Burdon Sanderson   1 October [1873]

Summary

Hears from Frank [Darwin] that Drosera behaves perversely. Suggests that motor influence may move longitudinally away from the excited glands.

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  1 Oct [1873]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-7)
Letter no:  DCP-LETT-9081

To J. S. Burdon Sanderson   15 November [1873]

Summary

Frankland is sending JSBS organic acids for him to try artificial digestion. CD will send globulin and haemoglobin.

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  15 Nov [1873]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-12)
Letter no:  DCP-LETT-9143

To J. S. Burdon Sanderson   19 November [1873]

Summary

Sends the very little globulin and haemoglobin he has to be tested with artificial gastric juice. He could get more from Samuel William Moore. Perhaps T. L. Brunton knows about the digestion of chlorophyll by animals.

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  19 Nov [1873]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-6)
Letter no:  DCP-LETT-9155

To J. S. Burdon Sanderson   18 October [1873]

Summary

Suggests experiments on artificial digestion.

Author:  Charles Robert Darwin
Addressee:  John Scott Burdon Sanderson, baronet
Date:  18 Oct [1873]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-26)
Letter no:  DCP-LETT-9684
Document type
letter (13)
Author
Darwin, C. R.[X]
Addressee
Burdon Sanderson, J. S.[X]
Correspondent
Date
1873
03 (1)
06 (2)
07 (1)
08 (2)
09 (3)
10 (2)
11 (2)
letter