RECORD: Darwin, C. R. [1878].03.20. Oats / Draft of Cross and self fertilisation. CUL-DAR209.11.7. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and 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). Draft in the hand of Ebenezer Norman with corrections by Darwin. The text of the draft corresponds to Cross and self fertilisation, p. 37.


[7]

Oats March 20th

several degrees below Horizon.

Oats. March 20th

Cot. no true leaf            Right Hand — True Leaf

8° . 30      ⊡        8° 30'      ⊡

9 . 15    up.        9° 15    little / up

9. 55    much risen        9 . 55    fallen !

10. 38    much risen      10 . 38    almost same spot

11 . 10'    do      11° 10    do

14 45 up            11. 45    do

12 . 15    up       12 . 15    a little lower

12 . 57    up       12 57    a little higher

1. 57    to right & close to first dot       1 . 57    a little lower

3    down & to left        3° .    an atom down

4°    up down              4.    do

5    up - I think true leaf protruding     

6 .    to left       

7°. 20    up & to right parallel              

8. 30    too contorted to be traced up up.          

9. 30'    up         

10. 30    up (      10°. 30    same position

(21)

           

7° am —      ⨀   7° a.m      ⨀

8°           8°

49° above Horizon

           

some other species

rose more better

  41°          

& were parallel to

earth in pot

  49           

ie. had risen

about 90°

some other species rose much better & were parallel to each in pot ie. had risen above 90°

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of the crossed survived. The tallest of these when measured was 47 inches in height; whilst the tallest of the two surviving self fertilised plants was only 32 inches. Here again we see how much more vigorous the crossed plants are than the self-fertilised.

Crossed and self-fertilised plants of the seventh generation.— (Ipomoea purpurea). These were raised as heretofore with the following result.


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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

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