Has found the relation of pollen-grain size to style size in Primula to be the opposite of CD’s view; asks whether there is an error or just remarkable variation.
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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.
Has found the relation of pollen-grain size to style size in Primula to be the opposite of CD’s view; asks whether there is an error or just remarkable variation.
Purpose of bushy tails; their usefulness to their owners as a means of keeping warm.