Suggests that the scarcity of holly berries is owing to the scarcity of bees during the spring, rather than to frost. He does not know what caused the scarcity of bees.
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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.
Suggests that the scarcity of holly berries is owing to the scarcity of bees during the spring, rather than to frost. He does not know what caused the scarcity of bees.
CD confesses his error with respect to the cause of the scarcity of holly berries. It appears that several causes in combination have led to it. CD still believes rarity of bees played a part, though a subordinate one.
Replies to some of George Henslow’s criticisms [of Cross and self-fertilisation] made in his article ["Fertilisation of plants", Gard. Chron. n.s. 7 (1877): 203–4].