RECORD: Darwin, C. R. [1876].02.17.-29. Summary of Results — Observations assumed to have been made Each day at 12°. CUL-DAR77.49. (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 2.2023. 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 volumes CUL-DAR 76-79 contain material for Darwin's book Cross and self fertilisation (1876).
[49]
Summary of Results — Observations assumed to have been made Each day at 12°. They were really made at 8° A & 4° P.m. The sub-division of the peas in 1, 2 & 4 disregarded, as I am not quite sure that they were not mingled by rolling together. The main divisions of 1, 2, 3 & 4 are perfectly reliable.
Date Peas placed on damp sand under glass-cases on chimney-Piece on Feb. 17th. 2° 30' P.m.
Date |
1 |
(2) |
(3) |
(4) |
|
Big seeds product of big seeds |
little seeds product of big seeds |
medium seeds product of medium seeds |
small peas product of small peas |
Date Feb. 21. 12O |
7 |
1 |
|
1 |
22d 12O |
4 |
4 |
3 |
|
23d — 12O |
4 |
4 |
2 |
1 |
24' — 12O |
3 |
2 |
1 |
|
|
(15) |
(11) |
|
|
25 . 12 |
|
4 |
2 |
1 |
26' 12 |
|
2 |
|
1 |
27th |
1 |
1 |
|
|
28' |
|
3 |
|
|
29th |
|
2 |
|
1 |
The few remaining seeds all dead & rotten
All the many others died rotten
If you look up the 12° on Feb 24th the big peas from a big peas clearly had an advantage over the small peas from the big peas
[49v]
10 self-fertilises
10 crossed cases
But out of 10 cases of s-fert pure
Ipomoea 3 cases of s-fert lighter
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 23 December, 2025