RECORD: Darwin, C. R. 1880.04.17. Peas radicle with card on tips & above. CUL-DAR209.5.153. (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-DAR209.5 contains materials for Darwin's book Movement in plants (1880).
153
C D
Ap. 17. /80/
7º 55' a.m
Peas Radicles with cards on tips & above
(Glass Jar)
(germinated in peat & suspnded for 24 hr in damp air before cards attached.) Temp 59º—61º
(1) card 5mm from tip 12º I think curved to (18th 8º a m no effect
var. Warwick
(2) tip /O/ unhealthy & mouldy
(30)
(4) 5 mm fr tip (4º 30' P.m very little curved to.) (18th 8º a.m certainly slight curvature to card
(50)
(6) tip /O/
(7) 5 m.m. from tip— (18th 8º a.8 0 / has not grown)
(8) tip. 12 curved from (4º 30 decidedly) (18th 8º a.m slightly slightly curved from)
(9) 5 m (18th 8º slightly decidedly curved to card
(10) on tip (4º 30' greatly curved from but also laterally) (18' 8º a.m. do)
153v
See other side
Ap. 17. 8º .15 a.m avrage time
B
Peas germinated in peat & when cards attached suspnded over water
(1) card 5 m: fr tip (4º 30' perhpps a trac) 18th 8º I think slightly curved to card)\
(2) tip 12º I think curved (4º 30' perhaps a trace 4º 30' certainly curved from (18th 8º a now straight\ X
(3) 4 mm from tip 12º I think curved (4º 30 yes) 4º 30 do (18' 8º curvature rather doubtful)✔
(4) tip 18th 8º a.m I curved from but also laterally.\ X ✔
(5) 4 mm from tip 12º certainly curved to (4º 30' do) (18th 8º has been curved now nearly straight
(6) tip 12º card from. (4º 30' plainly) (18' 8º a.m do)✔ X ✔
(7) 4 mm fr tip 12º curved to (4º. 30' certainly) (18th 8º a.m has certany been curved to
(8) tip 12º I think from (4º 30' do) (18º a.m do). \ X
✔
(9) 4 mm. from tip 12º a little to. (4º 30' plainly) (18th 8º a.m has plainly ben curved to)
(10) 4 m tip — card square on sumit /O/
✔
(11) 4 mm from tip 12º strong crvd to (4º 30' conspicuously bent upper part 29º from prpndicular: or lower & upper part frmed together an angle of 151º. (18th 8º a.m no doubt about this curve.)
(12) 4 m tip (4º 30' slightly from) (18th 8º a.m I doubt slight from. )\ X
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 27 January, 2026