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From John Davy   30 January 1855

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Summary

Responds to CD’s letter. The ova of Salmonidae exposed to air, if kept moist, will stay alive up to 72 hours.

Author:  John Davy
Addressee:  Charles Robert Darwin
Date:  30 Jan 1855
Classmark:  DAR 205.2: 227
Letter no:  DCP-LETT-1634

From John Davy   21 March 1855

Summary

On the ova of the salmon in relation to the distribution of species.

Author:  John Davy
Addressee:  Charles Robert Darwin
Date:  21 Mar 1855
Classmark:  Philosophical Transactions of the Royal Society 146 (1856): 21–9
Letter no:  DCP-LETT-1651A

To John Davy   25 March [1855]

Summary

Will forward JD’s paper to the Royal Society ["On the ova of salmon", Philos. Trans. R. Soc. Lond. 146 (1856): 21–9].

Author:  Charles Robert Darwin
Addressee:  John Davy
Date:  25 Mar [1855]
Classmark:  Royal Institution of Great Britain (Box XVII, 210)
Letter no:  DCP-LETT-1653

To John Davy   26 March [1855]

Summary

Discusses JD’s paper ["On ova of salmon"]. His experiments are of particular value regarding power of dispersal and geographical distribution and would make of them a very different subject. Hopes JD can test again the tenacity of life of non-developed ova being less than that of those fully developed – a result which surprised CD.

Author:  Charles Robert Darwin
Addressee:  John Davy
Date:  26 Mar [1855]
Classmark:  Royal Institution of Great Britain (Box XVII, 210)
Letter no:  DCP-LETT-1654

To John Davy   3 January [1856]

Summary

Delighted to hear that JD’s research is continuing. CD has heard that JD’s paper will at last be published. He is flattered by the form [as a letter addressed to CD] of communication. [See 1651a and 1819a, published in Phil. Trans. R. S. 146 (1856): 21–9 and Proc. R. S. London 8 (1856–7): 27–33.]

Author:  Charles Robert Darwin
Addressee:  John Davy
Date:  3 Jan [1856]
Classmark:  David Schulson Autographs, New York (1991)
Letter no:  DCP-LETT-1816A

From John Davy   10 January 1856

Summary

On the vitality of the ova of the Salmonidae at different stages of development.

Author:  John Davy
Addressee:  Charles Robert Darwin
Date:  10 Jan 1856
Classmark:  Proceedings of the Royal Society of London 8 (1856–7): 27–33
Letter no:  DCP-LETT-1819A
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letter (6)
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1855 (4)
1856 (2)
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