RECORD: Darwin, C. R. 1878.10.09-11. Cassia Sea-side— Apogeotropism. CUL-DAR209.11.36. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and John van Wyhe, edited by John van Wyhe 7.2023. RN2
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-DAR209.11 contains material for Darwin's book Movement in plants (1880).
[36]
Cassia Sea-side— Apogeotropism
Oct 9th 1878
Horizontal at 8° 10'
N.B The shorter seedling under action of Light was much m less acted on by apogeotropism than the taller one
7°. 25 to right & from Light
Left Hand— |
Right- Hand |
8° 15 — first dot |
8° 15' first dot |
8 45 down |
8° 45 down & to left |
9. 30' a little up. |
9. 30 do. do |
10. 18 do |
10. 18 down & little to right |
11. 20 up to original starting Point |
11. 20 still down |
1°. considerably up |
1° an atom up |
2. 5 up & to right |
2° up straight |
2. 53 up straight |
2. 53 far. down again ! |
4° up |
4° up |
5' do |
5. down, nearly same spot |
6' do |
not marked — |
7. 25 do |
7. 25 to left |
9° do—(a quit young seedling bowed vertically up.) |
|
10. 35 do |
10. 35 up & ⨀ to right |
Oct 10th 7° a.m on Horizontal glass |
same position |
7°. 25 to right & from Light |
(Used) |
8. 35 to light
9. 35 do— straight to Light
10. 30— do. do. do
11. 30 do do do
12 37 a bit to left
1. 24 to right
2. 35 to left short way
3° nearly same spot
4° 10 do
5 45 from light
10. 20' from Light & to left
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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 21 December, 2025