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Burdon Sanderson, J. S. in correspondent 
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DCP-LETT-10070

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
16 July 1875
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-22)
Summary:

Thanks for JSBS’s essays; wishes he had said something on Lister’s observations. Speculates on the fungoid nature of smallpox and why there is seldom re-infection.

Discusses digestion by Drosera, the action of its secretion being the same as that of gastric juice.

Contributor:
Darwin Correspondence Project

DCP-LETT-10485

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
30 Apr [1876]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-01)
Summary:

Suggests JSBS’s new machine for observing arterial action be used to test CD’s hypothesis that blushing is caused by thinking intensely about a part of the body and thus releasing the arteries.

Contributor:
Darwin Correspondence Project

DCP-LETT-12050

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
13 May 1879
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-23)
Summary:

CD astonished at receiving the Baly Medal of the Royal College of Physicians.

Contributor:
Darwin Correspondence Project

DCP-LETT-12954

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
29 Dec 1880
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-24)
Summary:

Requests JSBS sign certificate for [Francis Darwin’s] candidacy [for Royal Society].

Contributor:
Darwin Correspondence Project

DCP-LETT-8829A

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
29 Mar 1873
Source of text:
DAR 147: 406
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.]

Contributor:
Darwin Correspondence Project

DCP-LETT-8948

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
24 June 1873
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-10)
Summary:

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

Contributor:
Darwin Correspondence Project

DCP-LETT-8952

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
26 June [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-08)
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.

Contributor:
Darwin Correspondence Project

DCP-LETT-8987

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
25 July 1873
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-11)
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.

Contributor:
Darwin Correspondence Project

DCP-LETT-9013

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
15 Aug 1873
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-13)
Summary:

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

Contributor:
Darwin Correspondence Project

DCP-LETT-9029

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
27 Aug 1873
Source of text:
National Library of Scotland (MS.6103 ff.101)
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.

Contributor:
Darwin Correspondence Project

DCP-LETT-9047

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
9 Sept [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-14)
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.

Contributor:
Darwin Correspondence Project

DCP-LETT-9055

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
13 Sept [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-15)
Summary:

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

Contributor:
Darwin Correspondence Project

DCP-LETT-9056

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
14 Sept [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-9)
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?].

Contributor:
Darwin Correspondence Project

DCP-LETT-9081

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
1 Oct [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-7)
Summary:

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

Contributor:
Darwin Correspondence Project

DCP-LETT-9143

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
15 Nov [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-12)
Summary:

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

Contributor:
Darwin Correspondence Project

DCP-LETT-9155

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
19 Nov [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-6)
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.

Contributor:
Darwin Correspondence Project

DCP-LETT-9368

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
21 Mar 1874
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-16)
Summary:

Sends his MS on Dionaea and hopes it may be useful for JSBS’s lecture ["On the mechanism of the leaf of Dionaea muscipula", Not. Proc. R. Inst. G. B. 7 (1874): 332–5].

Contributor:
Darwin Correspondence Project

DCP-LETT-9381

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
31 Mar [1874]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-5)
Summary:

Thanks for the careful experiments, particularly on organic acids.

Contributor:
Darwin Correspondence Project

DCP-LETT-9441

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
5 May [1874]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-4)
Summary:

Thanks for the acid digestion experiments, which can be printed as they are. CD trying Drosera on dentine and enamel.

Contributor:
Darwin Correspondence Project

DCP-LETT-9459

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
14 May 1874
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-17)
Summary:

Discusses digestion by insectivorous plants, asks JSBS to try same experiments using pepsin as the digestive agent to see how the results compare with CD’s observations on digestive power of Drosera.

Contributor:
Darwin Correspondence Project
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