Problems of continuing with his crossing experiments; financial help from CD.
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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.
Problems of continuing with his crossing experiments; financial help from CD.
Talk of a subscription to help JT’s experiments. Progress of experiment; loss of fungus-resistance in varieties as they age.
Potato crossing experiments. Encloses printed copies of letters from people who have grown his potato seed.
Life history of potato varieties. Changes in fruit, flower, and seed production with increasing age of a variety.
Sales of [potato] varieties have reduced amount of money needed [for experiments].
Thanks for CD’s criticism and advice. The difficult question of whether varieties "wear out".