[208]

	2 Mortars — touching vessel	Water temperature	on Table Cent
July 2'	7º. 40 —	64	18º
10' 40'	⸻⸻	69º	—19º
12º	⸻ one mortar being very little	72º
1º	⸻⸻	74º	—18 1/2
2º	⸻⸻	76º	18 2/3
3º	⸻⸻	77º
4º	⸻⸻	— 80	— 19º C.
	(took away the larger Mortar)
4º  50	⸻⸻	79 barely
5º 50	⸻⸻	78º
7º 15	⸻⸻	72º—
10º P.m	⸻still Candle lately gone out	72 1/2	— 23º Fire in room

 

(Begin by making water in case at about 75º to 80º F & then put one mortar & cover with cloth which will make heat greater)

Bell-glass on 3 wooden Bricks Blocks

[208v]

(6

720

Ch XI

I do not know whether Lepidoptera generally fly, fl keep to the flowers of the same species; but I once observed many minute moths (I believe Lampronia (Tinea) calthella) apparently eating the pollen of Mercurialis annua, and they had the whole front of their bodies covered with pollen: I then went to a female plant some yards off, and saw in the course of fifteen minutes three of these moths alight on the stigmas. Lepidoptera are probably often induced to frequent the flowers of if the flowers these having provided with

[bottom of page excised]

[The text of the draft corresponds to Cross and self fertilisation, p. 418.]

[209]

Temperature

Upstairs under skylight

July 2d	6º 14.	18º C.
	8º	do
	11	17 1/2
	1º	do
	5.	18º
3' 6. —48'
3d	8º 16	16 1/2
	11 — ⸻	17º
	5. 20' —	17 1/2
4th	6º 45' a.m	16
	12	16 3/4
15th	8º 30	18º nearly
	9. 15.	do
16th	6º 40' a. m

28m. 3

[209v]

[one line obscured by tape]

= peated the experiment by planting near together two varieties of cabbage with purple-green and white-green lacinated leaves; and of the 325 seedlings raised from the purple-green variety, 165 had white-green and 160 purple-green leaves. Of the 466 seedlings raised from the white-green variety, 220 had purple-green leaves and 246 white-green leaves. These cases show how largely pollen from a neighbouring variety of the cabbage effaces the action

[The text of the draft is in the hand of Ebenezer Norman and corresponds to Cross and self fertilisation, p. 393.]

[210]

Maize

July 4'

9º a. m pinned to cork in jar with water at 80 79º F.— under Bell-glass & cloth over to fix card on in evening

9º a.m	Temp on Table	Room 18 1/2 C.
10'. 10	water 75ºF
11. 35	76º 1/2 F
1º	78º
1. 30	78º
2. 15	⸻ do
4. 30	78 1/2	5º 24' 18 1/2

 

(Temperature on Study Table)

July 5th Temp upstairs rec.

in study.

10º 13 30'

18 2/3

 

	3º ⸻⸻	do
	7. 15  ⸻	18 1/2
	10 — —	19 1/2
July 6 Temp in study	6º 40' a.m ⸻	18 1/2
	11º 30	19 1/2 = 67º F
	2. 3º & 4º ⸻	19 1/2
	7 1/2 —	19 1/4
	10º ⸻⸻	20º

July 7'	6º 45 a.m — 19º
	10. 30 & 3º— 19º
	8th 6º. 45 ⸻ 19º	22º to 23º C wd be perfect

21º 1/6

[210v]

[one line taped over]

must believe this has occurred from the presence of rudimentary stamens in the flowers of some individuals, and of rudimentary pistils in the flowers of others individuals of the same species, as for example in Lychnis dioica. But a conversion of this kind will not have occurred unless cross-fertilisation was already assured, generally by the agency of insects; but why the production of male and female flowers on distinct plants should have been advantageous, cross-fertilisation

[The text of the draft corresponds to Cross and self fertilisation, p. 411.]