RECORD: Darwin, C. R. n.d. Diameter of sphere. CUL-DAR60.1.63. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2022. 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-DAR 54-61 contain material for Darwin's book Insectivorous plants (1875).
[63]
Diameter of Sphere = 11/2000 inch.
Superfices of Sphere x 146 = 0.013874 in
Side of Square of same area = 0.1178 in
diameter of circle of same area = 0.1329 in
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 3 February, 2023