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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

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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1855 (2)
1856 (1)