From J. S. Burdon Sanderson 12 October 1874
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, 1st 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 3 September [1874]
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, 1st baronet |
Addressee: | Charles Robert Darwin |
Date: | 3 Sept [1874] |
Classmark: | DAR 58.1: 146 |
Letter no: | DCP-LETT-9623 |
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, 1st 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 |
Matches: 4 hits
- … S. Burdon Sanderson, 21 March 1874 . See letter to J. S. …
- … this letter and the letter to J. S. Burdon Sanderson, 21 March 1874 . CD had lent Burdon …
- … 1874 . Burdon Sanderson was professor of practical physiology and histology at University College, London. CD had suggested that Ghetal Burdon Sanderson should read his manuscript on Dionaea to Burdon Sanderson. See letter to J. …
- … 1874 and n. 5. Burdon Sanderson refers to Francis Darwin . Burdon Sanderson carried out a series of experiments for CD on the digestion of insectivorous plants (see Correspondence vol. 21, letter to J. S. Burdon Sanderson, …
From J. S. Burdon Sanderson 26 June [1874]
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, 1st baronet |
Addressee: | Charles Robert Darwin |
Date: | 26 June [1874] |
Classmark: | DAR 58.1: 144–5, 153–4 |
Letter no: | DCP-LETT-9517 |
Matches: 4 hits
- … 19 June 1874 and n. 5 See letter to J. S. Burdon Sanderson, 21 June [1874] and n. 6. …
- … Burdon Sanderson, 21 June [1874] and n. 2. See letter to J. S. Burdon Sanderson, 21 …
- … this letter and the letter to J. S. Burdon Sanderson, 21 June [1874] . Drosera is the …
- … 1874] and n. 4. Gluten is a protein compound derived from wheat and other grains. Dextrine (now usually spelled dextrin) is a starch that is found together with gluten in the endosperm of the grain. Frederic James Montague Page . See letter from J. S. Burdon Sanderson, …
To J. S. Burdon Sanderson 13 October 1874
Summary
Discusses the powers of digestion of Drosera and why certain substances produce less excitement in the plant than others.
Author: | Charles Robert Darwin |
Addressee: | John Scott Burdon Sanderson, 1st baronet |
Date: | 13 Oct 1874 |
Classmark: | University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-20) |
Letter no: | DCP-LETT-9678 |
Matches: 4 hits
- … see letter to J. S. Burdon Sanderson, 9 October 1874 , and letter from J. S. …
- … basis of bones and teeth. See letter from J. S. Burdon Sanderson, 12 October 1874 . …
- … See letter from J. S. Burdon Sanderson, 12 October 1874 . CD refers to fibrin, areolar …
- … 1874 ). CD carried out a number of experiments on the digestion of gelatine by Drosera (sundew) in 1873 (see Correspondence vol. 21, letter to Edward Frankland, 12 July 1873 , and letter to J. S. Burdon Sanderson, …
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, 1st 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 |
Matches: 3 hits
- … the letter to J. S. Burdon Sanderson, 21 March 1874 , and the letter from J. S. …
- … expanded form (see letter from J. S. Burdon Sanderson, 25 April 1874 ), were included in …
- … 1874] . Burdon Sanderson had undertaken a series of experiments for CD on the digestion of insectivorous plants (see Correspondence vol. 21, letter to J. S. Burdon Sanderson, …
To J. S. Burdon Sanderson 31 March [1874]
Summary
Thanks for the careful experiments, particularly on organic acids.
Author: | Charles Robert Darwin |
Addressee: | John Scott Burdon Sanderson, 1st baronet |
Date: | 31 Mar [1874] |
Classmark: | University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-5) |
Letter no: | DCP-LETT-9381 |
Matches: 3 hits
- … and the letter from J. S. Burdon Sanderson, 30 March [1874] . See letter from J. S. …
- … digestion (see letter from J. S. Burdon Sanderson, 30 March [1874] ). CD refers to …
- … 1874] and enclosure and n. 6. CD wanted to determine whether the digestive process of insectivorous plants such as Drosera (sundew) was analogous to that of animals (see Insectivorous plants , p. 85). See Correspondence vol. 21, letter to J. S. Burdon Sanderson, …
From J. S. Burdon Sanderson 26 May [1874]
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, 1st baronet |
Addressee: | Charles Robert Darwin |
Date: | 26 May [1874] |
Classmark: | DAR 58.1: 54–5 |
Letter no: | DCP-LETT-9470 |
To J. S. Burdon Sanderson 27 May [1874]
Summary
Thanks JSBS for his work. CD concludes the ferment of Drosera must differ from pepsin.
Author: | Charles Robert Darwin |
Addressee: | John Scott Burdon Sanderson, 1st baronet |
Date: | 27 May [1874] |
Classmark: | University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-3) |
Letter no: | DCP-LETT-9473 |
From J. S. Burdon Sanderson 12 May [1874]
Summary
Reports results of experiments comparing digestibility of gluten and fibrin for CD’s work on Drosera.
Author: | John Scott Burdon Sanderson, 1st 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 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, 1st baronet |
Addressee: | Charles Robert Darwin |
Date: | 25 Apr 1874 |
Classmark: | DAR 58.2: 65–70 |
Letter no: | DCP-LETT-9427F |
To J. S. Burdon Sanderson 21 June [1874]
Summary
Thanks for fibrin. Drosera and Pinguicula dissolve it thoroughly.
Author: | Charles Robert Darwin |
Addressee: | John Scott Burdon Sanderson, 1st baronet |
Date: | 21 June [1874] |
Classmark: | University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-2) |
Letter no: | DCP-LETT-9504 |
Matches: 4 hits
- … the letter from J. S. Burdon Sanderson, 19 June 1874 . This letter was published without …
- … 1874 , pp. 106 and 107. CD had asked for ‘a bit of fibro-cartilege from any animal’ to feed to Drosera (see Correspondence vol. 22, letter to J. S. Burdon Sanderson, …
- … 1874] ). The second part of Burdon Sanderson 1874 was published in Nature , 18 June 1874 (see Correspondence vol. 22, letter to J. S. Burdon Sanderson, …
- … letter of 26 May [1874] ( Correspondence vol. 22). Burdon Sanderson reported the results of his experiments on the relative digestibility of gluten and fibrin in his letter of 12 May [1874] ( Correspondence vol. 22); he later noted that gluten was completely dissolved in tests with three different acids (see ibid. , letter from J. …
From E. E. Klein 14 May 1874
Summary
Reports on his examination of the effects of Drosera secretion on tooth enamel and dentine, and of artificial gastric juice on fibrous basis of bone.
Author: | Edward Emanuel Klein |
Addressee: | Charles Robert Darwin |
Date: | 14 May 1874 |
Classmark: | DAR 58.1: 53 |
Letter no: | DCP-LETT-9460 |
To J. S. Burdon Sanderson 5 May [1874]
Summary
Thanks for the acid digestion experiments, which can be printed as they are. CD trying Drosera on dentine and enamel.
Author: | Charles Robert Darwin |
Addressee: | John Scott Burdon Sanderson, 1st baronet |
Date: | 5 May [1874] |
Classmark: | University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-4) |
Letter no: | DCP-LETT-9441 |
To J. S. Burdon Sanderson 14 May 1874
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.
Author: | Charles Robert Darwin |
Addressee: | John Scott Burdon Sanderson, 1st baronet |
Date: | 14 May 1874 |
Classmark: | University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-17) |
Letter no: | DCP-LETT-9459 |
To E. H. Stanley 15 April 1875
Summary
CD has helped leading physiologists to prepare a draft bill for legislation with regard to vivisection, and he hopes Lord Derby will support the bill and mention it to ministers of the Cabinet. Has heard that other groups are preparing bills for the same purpose, and feels it important that the science of physiology be protected as well as animals.
Author: | Charles Robert Darwin |
Addressee: | Edward Henry Stanley, 15th earl of Derby |
Date: | 15 Apr 1875 |
Classmark: | DAR 97: C22–4 |
Letter no: | DCP-LETT-9933 |
From J. S. Burdon Sanderson 16 October [1874]
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, 1st baronet |
Addressee: | Charles Robert Darwin |
Date: | 16 Oct [1874] |
Classmark: | DAR 58.1: 104–5 |
Letter no: | DCP-LETT-9681 |
From J. D. Hooker [after 4 September 1874]
Summary
Forwards a letter reporting on a blow-fly trapped by a leaf of Dionaea; decomposition of fly has also decomposed the leaf. JDH has written asking for a strong plant, and explaining the case [of surfeit].
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [after 4 Sept 1874] |
Classmark: | DAR 103: 222–3 |
Letter no: | DCP-LETT-9615 |
To J. S. Burdon Sanderson 21 March 1874
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].
Author: | Charles Robert Darwin |
Addressee: | John Scott Burdon Sanderson, 1st baronet |
Date: | 21 Mar 1874 |
Classmark: | University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-16) |
Letter no: | DCP-LETT-9368 |
To J. D. Hooker 20 July [1874]
Summary
"It is grand about Nepenthes."
JDH is welcome to notice in any way any of CD’s published or unpublished results with insectivorous plants. Gives an abstract of his observations on Drosera.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 20 July [1874] |
Classmark: | Royal Botanic Gardens, Kew (JDH/3/6 Insectivorous plants 1873–8: 32–37) |
Letter no: | DCP-LETT-9555 |
Matches: 2 hits
- … acids. See letter from J. S. Burdon Sanderson, 30 March [1874] ). See letter from Joseph …
- … 1874 and n. 2). In the summer of 1873, CD had described his work on Drosera (sundew) to John Scott Burdon Sanderson , who proposed testing for electrical changes in the leaves. CD suggested that Dionaea would be more suitable as an experimental subject (see Correspondence vol 21, letter from J. S. Burdon Sanderson, 13 August [1873] , and letter to J. …
letter | (36) |
Darwin, C. R. | (20) |
Burdon Sanderson, J. S. | (11) |
Hooker, J. D. | (3) |
Huxley, T. H. | (1) |
Klein, E. E. | (1) |
Darwin, C. R. | (16) |
Burdon Sanderson, J. S. | (11) |
Hooker, J. D. | (3) |
Frankland, Edward | (2) |
Brunton, T. L. | (1) |
Darwin, C. R. | (36) |
Burdon Sanderson, J. S. | (22) |
Hooker, J. D. | (6) |
Frankland, Edward | (2) |
Brunton, T. L. | (1) |