RECORD: Darwin, C. R. & Francis Darwin. n.d. Foxglove. CUL-DAR77.66-69. (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).


[66]

(Foxglove)

(8)

Crossed

Self-fertilised

46 — 7  

 39 — 1

(9) Crowded Pots

49

30 — 3

50 — 3

15

46 — 3 separate rest?

36 — 7

47 — 6 top broken off.

44 — 1

 

31 — 6 ?



(10) Crowded Pots

46 — 4

47 — 7

35 — 2

34 — 7

24 — 5

40 — 7

41 — 4

41 — 1

17 — 3 pulled off bit

 

  405 — 5

362 — 0



(8 [+] 7 [+] 10 [=] 25 no' of Plants
9 [+] 6 [+] 10 [=] 25 Plants
(10)

See Back

(10)

[66v]

Look to Height in crowded pots alone

The crossed plants of 9 & 10 added together weighed 3 lb 9 2/3 oz

The self plants of 9 & 10 weighed in the same way. ie all in one bundle weighed— 2. lb 12 1/4 oz

100 : 78

Crosses 16 oz [x] 3 [=] 48 [+] 9.66 [=] 57.66 oz.

16 [x] 2 [=] 32 [+] 12.25 [=] 45.25 oz.

25 [-] 9 [=] 16

[67]

(Foxgloves)

(5)

Crossed

Self-fertilised

46 —  4  6  

 42 — 1

40 — 4

42 — 1

43

 

(6)

48 — 2

47 — 7

46 — 2

48 — 3

 4

 

(7)

48 — 5

25

42

40 — 5

  315 — 3

246 — 1

37 — 4 top broken off.

 

(17)

(6)

 

[68]

(Foxgloves)

(Fox gloves)

(1)

Crossed by pollen of other flower

Self-fertilised by pollen of same flower

49 — 4/8  

 0

0 [illeg] or did not produce a flower

46 — 7

45 — 5 4

43 — 6

52

 

0

 

(2)

38 — 4

54 — 4

47. — 4

47 — 5

 

32 — 5

(3)

54 — 7

46 — 5

 

(4)

32 — 1

41. — 3

43 — 7 4

29 — 7

 

37 — 1

 357 — 0

387 — 3

(8)

(9)

 

[68v]

Fox-Gloves

[69]

(Summary)

Crossed

Self-fertilised

357 — 0  

 387 — 3/8

315    3

246    1

405    5

362

  1078    0 [÷] 25 [=] 43.12

995.5    4/8 [÷] 25 [=] 39.82

I ought to calculate the isolated pot 1-8 separately

Crowded Pots alone 9 & 10

Cross

358.756/8 [÷] 9 [=] 39.86

323 [÷] 9 [=] 35.88

So crossed slight advantage tried in every way & by weight (see Back of p. 3 for weight)


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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 24 December, 2025