[147]

Nov. 3 77

Trifolium resupinat

nutation of free axis dark vertical glass [sketches]

(Used in perfect M.S

9° 18'

9 26 — a little bit down & to right

9 55 far down & to right

10 44 far to right & down

11. 18 perpendicularly up

11. 40 to left & up (parallel to down line)

12 10 down

12 55 up perpendicularly

1 35 down trem greatly

2 20 an atom left — (no doubt gone down & again rising)

3 to left. Horizontal

4° to left

4. 30 back again

Used

4 / 7.

Change course 8 times completely

[147v]

[Proof sheet of Forms of flowers, pp. 59-61, differing substantially from the published text.]

[148]

Nov. 5 77

Trifolium resupinatum — in dark room.

stem secured & lower part of long petiole [annotated sketches]

Left Hand Terminal

9. 12 [sketch]

10 7

10.45 same course

11° 30 same course but down I think lateral

12.10 down

12 55 I think twist little up & left

1.55 considerably to left (leaves clearly

2.40 up

Put in the sun

at 5° 4° quite awake

Right-Hand one of laterals

9. 12 [sketch]

10.7

10.45 same course

11° 30 same course but down leaflets going to sleep.

12° 10 down

12. 55 down

1. 55 to left going to sleep)

2. 40 up

Useless

[148v]

in tropical America, has long been known.*(43) 44

They likewise escape to a large extent the fatal intermittent fevers that prevail along at least 2600 miles of the shore of Africa, & which annually cause one-fifth of the white settlers to die, & another fifth to return home invalided.*(44) 45 This high degree of immunity in the negro from fevers of various Kinds seems to be partly inherent, depending on some unknown peculiarity of constitution, & partly the result of acclimatization. Pouchet*(45) 46 states that the Negro regiments, borrowed from the Viceroy of Egypt for the Mexican war, which had

[Descent 1: 243: "That negroes, and even mulattoes, are almost completely exempt from the yellow-fever, which is so destructive in tropical America, has long been known.44 They likewise escape to a large extent the fatal intermittent fevers that prevail along, at least, 2600 miles of the shores of Africa, and which annually cause one-fifth of the white settlers to die, and another fifth to return home invalided.45 This immunity in the negro seems to be partly inherent, depending on some unknown peculiarity of constitution, and partly the result of acclimatisation. Pouchet46 states that the negro regiments, borrowed from the Viceroy of Egypt for the Mexican war, which had been recruited near the Soudan, escaped the yellow-fever almost equally well with the negroes originally brought from various parts of Africa, and accustomed to the climate of the West Indies. That acclimatisation plays a part is shewn by the many cases in which negroes, after having resided for some time in a colder climate, have become to a certain extent liable to tropical fevers.47"]

[149]

Nov 6

Trifolium resupinatum Light vertical glass

Left Leaflet

9. 20'

10' to right

10. 47 vertically down

11. 50 do greatly

12 20 down & to right

1° — same course

2. fallen

3° far down (may be heliotropism

4° greatly risen

5 rising & to left

6 out of glass

7° 15 going to sleep

(Used)

Right Lateral Leaflet (Petiole secured close under leaflets)

9. 20'

10° to right & down

10. 47 down & little to right

11. 50 down greatly

12. 20 far down

1° down

2° beyond glass & yet tied

3° ? to left

4° greatly risen

5 rising & to left

6° far to left & rising

7. 15 almost out of gl.

night {7°. 22' red to dot up above 3.

{8 .35 to left

{9. 15 same spot

{10. 30 down & to left

[149v]

[Proof sheet of Forms of flowers, p. 60 (published, pp. 117-19).]