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1870-1879 in date 
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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

DCP-LETT-9473

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
27 May [1874]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-3)
Summary:

Thanks JSBS for his work. CD concludes the ferment of Drosera must differ from pepsin.

Contributor:
Darwin Correspondence Project

DCP-LETT-9489

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
12 June 1874
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-18)
Summary:

JSBS’s article in Nature ["Venus’s fly-trap", 10 (1874): 105–7, 127–8] could not have been better done.

Has found another plant, Pinguicula, which can catch and digest flies.

Contributor:
Darwin Correspondence Project

DCP-LETT-9504

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
21 June [1874]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-2)
Summary:

Thanks for fibrin. Drosera and Pinguicula dissolve it thoroughly.

Contributor:
Darwin Correspondence Project

DCP-LETT-9669

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
9 Oct 1874
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-19)
Summary:

Has been testing the digestive powers of Drosera; wants to know whether a group of substances that elicit similar responses are related.

Contributor:
Darwin Correspondence Project

DCP-LETT-9678

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
13 Oct 1874
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-20)
Summary:

Discusses the powers of digestion of Drosera and why certain substances produce less excitement in the plant than others.

Contributor:
Darwin Correspondence Project

DCP-LETT-9684

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

Suggests experiments on artificial digestion.

Contributor:
Darwin Correspondence Project

DCP-LETT-9849

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
10 Feb 1875
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-21)
Summary:

Has been experimenting with phosphates on Drosera and wonders whether animals digest a particular one.

Asks whether Huxley has approached him regarding the introduction of a vivisection act.

Contributor:
Darwin Correspondence Project

DCP-LETT-9853B

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
12 Feb 1875
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-39)
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.]

Contributor:
Darwin Correspondence Project

DCP-LETT-9909A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
[12 Apr 1875]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-27)
Summary:

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

Contributor:
Darwin Correspondence Project

DCP-LETT-9917A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
7 Apr [1875]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-30)
Summary:

Sends the Memorial [concerning animal experimentation].

Contributor:
Darwin Correspondence Project

DCP-LETT-9922A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
10 Apr 1875
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-40)
Summary:

Discusses the handling of the Memorial concerning animal experimentation.

Contributor:
Darwin Correspondence Project

DCP-LETT-9923A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
12 Apr [1875]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-29)
Summary:

Discusses the best means of presenting the draft bill about animal experimentation. Suggests that CD inform Lord Derby that scientific men concurred with the bill that had been prepared. [See 9923.]

Contributor:
Darwin Correspondence Project

DCP-LETT-9930A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
14 Apr [1875]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-38)
Summary:

Agrees that CD should write to Lord Derby to say that a bill on animal experimentation was being prepared and that the government should not comment at this stage. [See 9933.] Ridicules the idea of using inspectors. Distinguishes between dissection and vivisection.

Contributor:
Darwin Correspondence Project

DCP-LETT-9945A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
23 Apr [1875]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-32)
Summary:

Further discussion about the act regulating animal experimentation; believes the licensing of places to be impracticable.

Contributor:
Darwin Correspondence Project

DCP-LETT-9953A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
28 Apr [1875]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-31)
Summary:

Informs CD that he has taken no further action about the petition concerning animal experimentation on the understanding that it would be presented only if the government introduced an objectionable bill. [See 9948.]

Contributor:
Darwin Correspondence Project

DCP-LETT-9958A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
30 Apr [1875]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-33)
Summary:

Lyon Playfair approves the bill concerning animal experimentation and would be prepared to introduce it should it be necessary. Believes a bill could be passed by Parliament by September.

Contributor:
Darwin Correspondence Project

DCP-LETT-9972A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
6 May [1875]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-34)
Summary:

Informs CD that Lyon Playfair would introduce the bill in the House of Commons, and that Lord Cardwell and Lord Shaftesbury had agreed to support it, the former introducing the bill in the House of Lords.

Contributor:
Darwin Correspondence Project

DCP-LETT-9974A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
[8 May 1875]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-37)
Summary:

Further discussion of the introduction of a bill by Lyon Playfair on animal experimentation.

Contributor:
Darwin Correspondence Project
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