RECORD: Darwin, C. R. [1878?].02.04-07. Maize (Zea) / Draft of Forms of flowers. CUL-DAR209.4.425. (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 9.2022. 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.


[425]

Feb 4th

Maize .2 of inch above soil ground (Obscure light from above) cleared about .1 of soil

8° 30'

 

9 15 to right & little from light

 

10 20'   nearly same course

 

11. 33 gone back to so-called light .

 

12. 15   back on former line

 

1. 3' from light & little to left

[sketch]

2. 17 to light

 

3 — to light & right

 

4° to light & left

 

5. 6' to left & little to light

(Used)

6. 8. to left & from light — going back

 

7. 21— from light

 

8. 30   from light & little to right.

 

 from light  10 —

Total distance 10.1 in.

10. 45. a little to left

Bead to mark almost .7 grubbed down .15

Feb 5th 6° 50'

 

7° 50 to right

Feb 6' 8° am Height of Plant   .66 .7

8. 55 to light dot on front furrow

 

9. 45 no mark on line above arrow (see diag

 

10. 50 to right on old line

Length of filament .35 .4

11. 54 to the right & little from light

 

 to light 1°  & right

mark .7

 do  do   2°

Less magnified towards close

3°    gone back to left on former line

 

4 to light & left

 

5. 15 to left

 

6' an atom same course

Feb. 7th 6° 50' a.m ⨀

7. 18 almost same spot

8° —

8. 35 to left

 

9. 25 to left on old line

Length of Filament

10. 45 straight from light ending at end of little former loop

Magnification & how much grown

 

[425v]

as 71 to 31, or, as 100 to 44. Again if we taken an

[bottom of page excised]

[two sheets glued together at this point]

[top of page excised]

Equal number of capsules, whether good or bad, from the legitimately & illegitimately fertilised flowers, we find that the former contained seeds by weight compared with the latter as 50 to 24; or as 100 to 48 but if all the poor or bad capsules are rejected, of which many many were produced by the illegitimately fertilised flowers, the proportion is 54 to 35, or ie or 100 to 65.) In this & all other cases, the relative fertility of the two kinds of union can, I think be

[Forms of flowers, p. 27: "Again, if we take an equal number of capsules, whether good or bad, from the legitimately and illegitimately fertilised flowers, we find that the former contained seeds by weight compared with the latter as 50 to 24, or as 100 to 48; but if all the poor capsules are rejected, of which many were produced by the illegitimately fertilised flowers, the proportion is 54 to 35, or as 100 to 65. In this and all other cases, the relative fertility of the two kinds of union can, I think, be".]


Return to homepage

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

File last updated 19 December, 2025