RECORD: Darwin, C. R. 1871. [Earthworm research notes]. CUL-DAR63.25. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Prepared and edited by John van Wyhe 7.2025. 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 volumes CUL-DAR63, CUL-DAR64 and CUL-DAR65 contain a diverse array of materials for Darwin's research on earthworms. All of the textual items in these folders, including this one, have been transcribed in a single file: CUL-DAR63-65.
25
[26 December 1871]
1
Worm castings
Weight of Earth below the hole 185 [gr]
Weight of Earth above the hole 102 [gr]
∴ Weight below [÷] weight above = 9/5 nearly
This was not an old one
Dec 26/71 Lawn on mound
Casting above 1. 7/8 long
Turf thrown away
∠ of slope 5 1/2°
December 26th
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 7 July, 2025