Responds to CD’s letter. The ova of Salmonidae exposed to air, if kept moist, will stay alive up to 72 hours.
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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Responds to CD’s letter. The ova of Salmonidae exposed to air, if kept moist, will stay alive up to 72 hours.
On the ova of the salmon in relation to the distribution of species.
On the vitality of the ova of the Salmonidae at different stages of development.
Will forward JD’s paper to the Royal Society ["On the ova of salmon", Philos. Trans. R. Soc. Lond. 146 (1856): 21–9].
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.
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.]