LD is supplying coloured-glass light filters for CD’s experiments.
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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.
LD is supplying coloured-glass light filters for CD’s experiments.
LD’s chemical analysis of lamp-black.
Has been testing lamp-black for ammonia.
Encloses two photos [missing].
Has been trying unsuccessfully to weigh something for CD.
Suggests revisions in proofs of Erasmus Darwin.
[Letter wrongly dated Nov by LD.]
Recommends a photographer to CD for Expression.
Data relating to experiments; shrinkage of earth on drying.
Statistics showing rate of decline of population in Sandwich Islands, 1832–72.
LD has misplaced some figures on which he was to work.