The laboratory has scarcely any experimental evidence on acidity of humus soil and earthworm excreta. Refers CD to some sources of information.
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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.
The laboratory has scarcely any experimental evidence on acidity of humus soil and earthworm excreta. Refers CD to some sources of information.
Sends some books.
Invites CD to visit Rothamsted. The experimental plots are at their best "as illustrating the vast influence of external conditions on the character and results of the struggle between the numerous components of an established mixed herbage".