RECORD: Darwin, C. R. CUL-DAR209.2.17. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Prepared and edited by John van Wyhe. 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-DAR209.2 contains materials on circumnutation of leaves and stems for Darwin's book Movement in plants (1880).
17
10.25 P.m.
3 Pm.
26°
65
No 1
3 Pm — 65°
10.25 Pm — 26'
Half the Difference — 19 1/2°
180 (-) 134 (=) 46 (÷) 2 (=) 23
180 (-) 41 (=) 139 (÷) 2 (=) 69 1/2
8.30 P.m.
2.30 P.m
41°
134
No 2.
2. 30 Pm — 134°
8.30 " — 41°
Half the Difference 46 1/2
8.30 P.m
2.30 P.m:
24°
64°
No. 3
2. 30 Pm — 64°
8.30 " — 24°
Half the Difference 20°
8.30 P.m
2.30 P.m.
20
94°
No 4 5
2. 30 Pm — 94°
8.30 " — 20°
Half the Difference 36°
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 28 January, 2026