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From J. S. Burdon Sanderson   14 May 1879

Summary

Has received CD’s letter [see 12050]. Gives CD the history of the Baly Medal and names previous recipients. It is not necessary for CD to be present for the award, but if he chooses to attend, arrangements could be made for him to arrive just before the presentation. CD will not be required to make an acceptance speech.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  14 May 1879
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-41)
Letter no:  DCP-LETT-12052A

From J. S. Burdon Sanderson   [11 November 1879]

Summary

Thanks CD for a copy of Erasmus Darwin.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  [11 Nov 1879]
Classmark:  DAR 99: 96
Letter no:  DCP-LETT-12283

From J. S. Burdon Sanderson   31 December 1880

Summary

Signs a certificate sent to him by CD [see 12954].

Sends CD a ticket to his lecture on 25 February, in which he will propose that the mode by which the excitable parts of plants influence other parts at a distance is essentially the same as in the excitable structure of animals, contrary to the views of Hermann Munk and Julius Sachs.

Interested in chapters 6 and 7 of Movement in plants.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  31 Dec 1880
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-42)
Letter no:  DCP-LETT-12958A

From J. S. Burdon Sanderson   25 June 1873

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Summary

Informs CD of the effects of certain salts and other chemicals on animals.

Comments on CD’s results with Drosera. Suggests some experiments.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  25 June 1873
Classmark:  DAR 58.1: 116–19
Letter no:  DCP-LETT-8949

From J. S. Burdon Sanderson   28 July [1873]

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Summary

A hasty answer to CD’s letter [8987] of 25 July. Mentions Dr Osler’s observations on behaviour of colourless blood corpuscles in solutions of sodium and potassium salts of same strength.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  28 July [1873]
Classmark:  DAR 58.1: 28–9
Letter no:  DCP-LETT-8988

From J. S. Burdon Sanderson   13 August [1873]

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Summary

Answers CD’s questions of 25 July [8987] about temperatures at which cold-blooded animals are killed.

Doubts heat rigor was induced in Drosera. Gives his view of the relation of excitability to increase in temperature.

Suggests experiment to show that electrical changes in plant are the same as in animal muscle and nerve [see Insectivorous plants, p. 318].

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  13 Aug [1873]
Classmark:  DAR 58.1: 34–7
Letter no:  DCP-LETT-9008

From J. S. B. Sanderson   [1874]

Summary

Note on the chemical composition of teeth.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  [1874]
Classmark:  DAR 58.2: 58
Letter no:  DCP-LETT-9214

From J. S. Burdon Sanderson   23 March [1874]

Summary

Thanks for MS which he intends to read while on a week’s holiday.

Sends thanks for Francis Darwin’s offer of help and says that Francis’s experiments on digestion are complete.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  23 Mar [1874]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-36)
Letter no:  DCP-LETT-9370A

From J. S. Burdon Sanderson   30 March [1874]

Summary

Sends results of experiments on digestion. Encloses two sets of notes: "Experiments on the digestibility of certain preparations sent by Mr Darwin" and "Note for Mr Darwin" [marked by CD for insertion in ch. 6 of Insectivorous plants].

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  30 Mar [1874]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-28); DAR 58.2: 59–64
Letter no:  DCP-LETT-9378A

From J. S. Burdon Sanderson   25 April 1874

Summary

Purpose of experiments was to determine digestive activity of liquids containing pepsin. Gives required amounts of hydrochloric, propionic, butyric and valerianic acids. Describes experiment and gives results. Also experimented on digestive activity of butyric acid at greater temperatures than the termperature of the body.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  25 Apr 1874
Classmark:  DAR 58.2: 65–70
Letter no:  DCP-LETT-9427F

From J. S. Burdon Sanderson   12 May [1874]

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Summary

Reports results of experiments comparing digestibility of gluten and fibrin for CD’s work on Drosera.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  12 May [1874]
Classmark:  DAR 58.1: 51–2
Letter no:  DCP-LETT-9456

From J. S. Burdon Sanderson   26 May [1874]

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Summary

Sends CD provisional information that artificial gastric juice dissolves bone entirely and that gluten and fibrin are completely dissolved in hydrochloric, propionic, and butyric acids. [See Insectivorous plants, pp. 118–19.]

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  26 May [1874]
Classmark:  DAR 58.1: 54–5
Letter no:  DCP-LETT-9470

From J. S. Burdon Sanderson   19 June 1874

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Summary

Sends cartilage from cat’s ear, the elastic fibres of which will probably resist digestion [by Drosera]. Is preparing fibro-cartilage, which he expects will be digested easily. [See Insectivorous plants, p. 104.]

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  19 June 1874
Classmark:  DAR 58.1: 60–1
Letter no:  DCP-LETT-9502

From J. S. Burdon Sanderson   26 June [1874]

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Summary

Is delighted to hear that Pinguicula and Drosera digest fibrin. Suggests diluting gluten in weak hydrochloric acid to remove starch. Enamel was nearly digested [by Drosera] overnight. Would like to try separating the digestive ferment of Pinguicula.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  26 June [1874]
Classmark:  DAR 58.1: 144–5, 153–4
Letter no:  DCP-LETT-9517

From J. S. Burdon Sanderson   3 September [1874]

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Summary

Will prepare experiments with the fatty acids on digestion of gluten. Has found it is digested slowly, but entirely, with pepsin and hydrochloric acid.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  3 Sept [1874]
Classmark:  DAR 58.1: 146
Letter no:  DCP-LETT-9623

From J. S. Burdon Sanderson   12 October 1874

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Summary

Suggests an explanation for difference in excitability of Drosera leaves to meat and albumen on the one hand and, on the other, fibrin, areolar tissue, gelatin, and fibrous basis of bone.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  12 Oct 1874
Classmark:  DAR 58.1: 101–3
Letter no:  DCP-LETT-9676

From J. S. Burdon Sanderson   16 October [1874]

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Summary

Responds to CD’s questions about relation to gelatin of areolar tissue, fibrous basis of bone, and other substances CD is using in his work on digestion of Drosera.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  16 Oct [1874]
Classmark:  DAR 58.1: 104–5
Letter no:  DCP-LETT-9681

From J. S. Burdon Sanderson   12 February 1875

Summary

Discusses the experiments with phosphates on Drosera and animals.

Considers the question of preparing a petition on the question of animal experiments, with the aim of promoting rather than hindering science. [Response to 9849.]

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  12 Feb [1875]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-39)
Letter no:  DCP-LETT-9853B

From J. S. Burdon Sanderson   [12 April 1875]

Summary

Considers the question of recognised lecturers being allowed a licence to perform animal experiments without having to obtain a certificate of fitness.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  [12 Apr 1875]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-27)
Letter no:  DCP-LETT-9909A

From J. S. Burdon Sanderson   7 April [1875]

Summary

Sends the Memorial [concerning animal experimentation].

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  7 Apr [1875]
Classmark:  University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-30)
Letter no:  DCP-LETT-9917A
Document type
letter (29)
Author
Burdon Sanderson, J. S.[X]
Addressee
Darwin, C. R.[X]
Correspondent
Date
1873 (3)
1874 (11)
1875 (12)
1879 (2)
1880 (1)
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