On worms and worm-castings.
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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.
On worms and worm-castings.
Asks her to observe seedlings of Neottia breaking the surface to see whether the flower stems grow straight up or form arches, and whether they secrete water that softens the surrounding ground.
Asks her to look for worm-castings in heath. Thinks heath conditions may be unfavourable. CD is sure Lucy would look with her, from her well-known affection for worms. Asks what sort of lantern Lucy used.
Their enumeration [of forms of Lythrum?] is invaluable. He will write later to explain what he is trying to prove about Lythrum through laborious crosses.
Asks for flowers of both forms of Hottonia to measure pollen and compare stigmas.