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To Edward Frankland   29 May [1879]

Summary

Hearty thanks for the two bottles of pure water.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  29 May [1879]
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-10001A

To Edward Frankland   27 April [1876]

Summary

Requests permission to call upon EF any morning from Saturday through Tuesday.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  27 Apr [1876]
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-10480A

To Edward Frankland   3 May 1876

Summary

His samples of earth have been sent for analysis. EF has saved CD and his son from wasted experimenting.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  3 May 1876
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-10495A

To Edward Frankland   [before 6 June 1876]

Summary

Requests chemical analysis of sample of both natural and burnt soil.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  [before 6 June 1876]
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-10533A

To Edward Frankland   6 June [1876]

Summary

Gratitude for the invaluable assistance. Is disappointed that natural soil is richer than burnt. Problem of securing sufficient chemically pure soil to test growth of plants.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  6 June [1876]
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-10534A

To Edward Frankland   22 November [1878]

Summary

Asks whether he may call to discuss a chemico-physiological point.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  22 Nov [1878]
Classmark:  The John Rylands Library, The University of Manchester (Frankland Collection 2179)
Letter no:  DCP-LETT-11755A

To Edward Frankland   2 December [1878]

Summary

Thanks for the Blue Book [Report to the Local Government Board on the water supplied to London].

Gives instructions for sending the pure water.

Has sent for the Wenham ice.

Enjoyed his talk with EF.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  2 Dec [1878]
Classmark:  The John Rylands Library, The University of Manchester (Frankland Collection 2230)
Letter no:  DCP-LETT-11768A

To Edward Frankland   4 January [1879]

Summary

Fears that the promised bottle of pure water may have been despatched or stolen in passage. [See 11768a.]

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  4 Jan [1879]
Classmark:  The John Rylands Library, The University of Manchester (Frankland Collection)
Letter no:  DCP-LETT-11820A

To Edward Frankland   8 February 1879

Summary

Gives results of the experiments: the leaves in most cases make the water alkaline. It cannot be ammonia. He and his son, Francis, suspect potash, which is valued as a manure. Will be grateful for the analysis EF has offered.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  8 Feb 1879
Classmark:  The John Rylands Library, The University of Manchester (Frankland Collection)
Letter no:  DCP-LETT-11864A

To Edward Frankland   20 April 1880

Summary

May CD’s son send some bottles of water, in which Pelargonium leaves have been immersed, for more precise analysis of the potassium or other soluble ash? Can EF recommend a professional analyst to take on further experiments?

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  20 Apr 1880
Classmark:  The John Rylands Library, The University of Manchester (Frankland Collection)
Letter no:  DCP-LETT-12585A

To Edward Frankland   8 February 1882

Summary

Asks EF to sign enclosed certificate if he thinks Raphael Meldola deserves being elected F.R.S. [See 13674.] Requests that his note with certificate be passed on to Norman Lockyer.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  8 Feb 1882
Classmark:  The John Rylands Library, The University of Manchester (Frankland Collection)
Letter no:  DCP-LETT-13670A

To Edward Frankland   12 July 1873

Summary

Seeks the assistance of a professional chemist in securing a qualitative analysis of the fluid secreted by the glands of Drosera which have the power of dissolving animal matter out of the bodies of insects. [See 8979.]

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  12 July 1873
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-8977A

To Edward Frankland   16 July [1873]

Summary

Thanks EF for his offer of assistance. Could the viscid secretions [in glands of Drosera] contain pepsin? Will the sodium carbonate render the testing of organic matter difficult? [See 8979.] Will send the fluid in a fortnight.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  16 July [1873]
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-8980A

To Edward Frankland   18 July [1873]

Summary

Agrees to delay sending the fluid [from the glands of Drosera] until early October. Will try suggestion about pepsin. [See 8981.]

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  18 July [1873]
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-8982A

To Edward Frankland   21 September [1873]

Summary

Although CD’s experiments with pepsin were unsuccessful, he observed that the glands [of Drosera] as far as acid is concerned act just as the stomach of a mammal. Further experiments detailed. The secretion must contain something analogous to pepsin. [See 9062.]

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  21 Sept [1873]
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-9061A

To Edward Frankland   23 September 1873

Summary

Will follow EF’s suggestions as to securing purity of fibrin.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  23 Sept 1873
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-9064A

To Edward Frankland   29 September 1873

Summary

Is sending washings of 445 leaves in EF’s distilled water with 20 grains of carbonate of soda. Details of the difficulties and complications involved.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  29 Sept 1873
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-9077A

To Edward Frankland   7 October [1873]

Summary

Requests a piece of the most sensitive litmus paper in order to test the secretions of minute hairs of plants which catch minute flies. [See 9098.]

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  7 Oct [1873]
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-9090A

To Edward Frankland   13 October 1873

Summary

Finds the negative information sent by EF of great interest [see 9094].

More on his own experiments and the perplexing results when using the sensitive litmus paper.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  13 Oct 1873
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-9096A

To Edward Frankland   18 October [1873]

Summary

Apologises for his ignorance in interpreting the results secured in his testing with blue litmus paper.

Author:  Charles Robert Darwin
Addressee:  Edward Frankland
Date:  18 Oct [1873]
Classmark:  The John Rylands Library, The University of Manchester
Letter no:  DCP-LETT-9100A
Document type
Addressee
Correspondent
Darwin, C. R.disabled_by_default
Frankland, Edwarddisabled_by_default
Date
1873 (16)
1874 (14)
1876 (5)
1878 (2)
1879 (3)
1880 (1)
1882 (2)
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