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/
7° 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 59°—61°
(1) card 5mm from tip 12° I think curved to (18th 8° a m no effect
var. Warwick
(2) tip /O/ unhealthy & mouldy
(30)
(4) 5 mm fr tip (4° 30' P.m very little curved to.) (18th 8° a.m certainly slight curvature to card
(50)
(6) tip /O/
(7) 5 m.m. from tip— (18th 8° a.8 0 / has not grown)
(8) tip. 12 curved from (4° 30 decidedly) (18th 8° a.m slightly slightly curved from)
(9) 5 m (18th 8° slightly decidedly curved to card
(10) on tip (4° 30' greatly curved from but also laterally) (18' 8° a.m. do)
153v
See other side
Ap. 17. 8° .15 a.m avrage time
B
Peas germinated in peat & when cards attached suspnded over water
(1) card 5 m: fr tip (4° 30' perhpps a trac) 18th 8° I think slightly curved to card)\
(2) tip 12° I think curved (4° 30' perhaps a trace 4° 30' certainly curved from (18th 8° a now straight\ X
(3) 4 mm from tip 12° I think curved (4° 30 yes) 4° 30 do (18' 8° curvature rather doubtful)✔
(4) tip 18th 8° a.m I curved from but also laterally.\ X ✔
(5) 4 mm from tip 12° certainly curved to (4° 30' do) (18th 8° has been curved now nearly straight
(6) tip 12° card from. (4° 30' plainly) (18' 8° a.m do)✔ X ✔
(7) 4 mm fr tip 12° curved to (4°. 30' certainly) (18th 8° a.m has certany been curved to
(8) tip 12° I think from (4° 30' do) (18° a.m do). \ X
✔
(9) 4 mm. from tip 12° a little to. (4° 30' plainly) (18th 8° a.m has plainly ben curved to)
(10) 4 m tip — card square on sumit /O/
✔
(11) 4 mm from tip 12° strong crvd to (4° 30' conspicuously bent upper part 29° from prpndicular: or lower & upper part frmed together an angle of 151°. (18th 8° a.m no doubt about this curve.)
(12) 4 m tip (4° 30' slightly from) (18th 8° 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