RECORD: Darwin, C. R. From the chalk powder in crevices. CUL-DAR142.34. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed and edited by John van Wyhe 10.2025. RN1
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR142 contains sample seed packets, misc. notes and photographs.
Darwin describes the chalk samples William sent to Parsons in Earthworms, pp. 299-300. This information is also found on CUL-DAR63.99-110
34
Chalk powder - & dish
9.305 oz
Hyd acid 3 9 + 2 water
+3 +9.-
+1 - 1
Lump chalk
Av 3 to 9 inches
[In another hand:]
From the chalk powder in crevices
2.245 ounces left a residue 0.225.
34v
Chalk powder
34.2
2.388 Residue 30.185 out of
2.388 ounces of chalk.
B. solid lump.
34.2v
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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 16 October, 2025