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Showing 61–75 of 75 items
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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.
Asks for proportion of water and of nitrogen in various ammonium salts.
[WWA’s replies are with the letter.]
Describes voyage to New Zealand.