RECORD: Darwin, C. R. & Francis Darwin. [1878.08]25-29. Trifolium repens / Draft of Cross and self fertilisation, folio 778. CUL-DAR209.3.36. (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 11.2022. 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-DAR209.3 contains materials on Circumnutation of leaves and hyponasty for Darwin's book Movement in plants (1880).
The text of the draft corresponds to Cross and self fertilisation, p. 454.
[36]
Trifolium repens
9°. 10' I
10 . 15 far to R
11. 30' do
11 . 57 . . do
12 . 40 do
1. 25 . do & little up
2° up— little
3° down & to right
4° up & back to former spot
5 . 45 down
7 . 20 up again
8. 55 up & to Right
10 . 35 to R
26th 6° 40'
8 . 5 same course as night
9 . 15 do
10 20' do
12° do
Used
1° do
3° nearly same spot
5 . 20 a little back
27th 6° 40'
27th 11° 30' new dot (turned pot round
1. 30' down & to right
2. 55 same course 4° back & up.
6 same course
7. 12' do crossed by arrow
8 . 50 to R.
10 . 45 up & to left
28th 6° 45 ⨀ for Cotyledon
8° down
9 5 . same course (a little below at right angle to vertical Head)
10 . 20 same course.
11 . 15 do
12 15 a little up. ?
1 30 down— (last mark probably error)
3 an atom up
4 little to left (at last a pause in descent)
5 30 little down
6 45 up. (certainly)
8. 40 up
10. 30 up & crossed old line
29th 6° 45' up during night severe
8° 30'. down
9. 20 to right — thick line
10. 25 down
12° down
1. 30 down & to R—
3°sam spot
5° up.
7° 10 down
10 40 up
30' 6° 45 up
[36v]
(635 778
Ch XII
Gen Con
years; but their advantage this superiority gradually & manifestly decreased, as, was shown in several instances by the difference in the result between a cross with of the intercrossed plants and with a fresh stock. These intercrossed plants also tended in a few cases to become somewhat more uniform in character or less variable than they were at first. With respect to the plants which were self-fertilised in each generation, their sexual elements apparently lost after some years all differentiation, for
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 20 December, 2025