RECORD: Darwin, C. R. [ny].07.06-07. 8h 30 / Pricked with fine needle 4 times. CUL-DAR60.1.97. Edited by John van Wyhe (The Complete Work of Charles 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).
July 6 8° 30
Pricked with fine needle 4 times each 14 leaves on Hot-House Plates
& 3 leaves (White wool — Stick) on) Plate with Gluten.)
Six of the seven leaves had here & there 2 or 3 tentacles inflected, & generally on side on which I had to hold the pin with large a pin with a large ball of sealing wax behind— I believe this much movement may be attributed to the glands having been pressed for some time — certainly there is no symmetry in the inflection. —
July 7th 7° 30' 3 of the leaves still have some tentacles inflected & this makes me think that pricking has had an effect, as effects of mere accidental touch would have worn away
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 12 February, 2023