[123]

Crinum Capense Vertical glass

obscure light

Right Hand.      Left Hand

[sketch]

straw

11º. 30'            11º. 30' from the right on edge of glass

12º noon straight far to right on edge of glass

uppermost black dot   12º risen far above glass no mark

12º changed mark ⨀   ⸻

12. 34º far to right      12. 34 has travelled to left but on glass

2º 47' spot on Bell glass         2º 47'

3. 4 to left & up          3. 4' a little down

3. 56 up & to left        3 56 up & to left

4. 30 almost same course more horizontal             4. 30 same course

5 20 to left & up         5 15 . up almost vertically

6— up             6º down

7. 20 to left & up        7º 20 to left & little up

9. 5 far to left 9. 5 up & to left

10. 35' far to left         10. 35 risen & to left

23d

6º 45. a.m        6º 45' am

8 gone back to right    8 to right & little down

9º to right & up — short way             9º up & to left short way up

10. 20' to right & down          10. 20' to left & little up

12 to left         12 same course very short distance

2º 5 a good way to left           2º. 5 same course

3. 5 to left & down     3. 5 do

4. 5 same course         4. 5 up & left

6— do             6 to left

7º. 30' a little up do 7. 30 to left & much up

9º. gone on lower side & parallel.      9º to right & back

11º 5 right & horizontal         11 5' to right & little up

 

 

24th

 

6º. 45   6º 45'

8 down & to right       8º same spot

9. 30 risen & gone back to left           9º 30' risend & to left

10. 30 back to right, little rise            10. 30' to left & down

11. 30 vertically up     11º 30 to left

1º down & to right almost same spot           1º same course

2º down on former line           2 do

3 to right         3º same course only an atom

4º down & across first line     4º same course

5. 10' little to right      5. 10 .do

7. up—            7º down

8º 45 — good way to left       8º 45 risen a little

10. 45 vertically up     10 45 same course

25

6º 40'         6º 40'

8º hardly moved    8º same course as night

9. 15 gone back     9. 15 d

10. 15        10. 15

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(41) 597

Chapter 9

self-fertilised plant long cultivated under the same conditions.

We may further infer that the converse of this occurs when with plants which are self-fertile in their native country, but become self-fertile under different changed conditions)

(We know that self-fertilised seedlings are inferior in many respects to those from a cross with a distant individual; and as with plants in a state of nature [illeg] [na]turally pollen from the same flowers can hardly fail to be often placed by insects or by the wind [in] their stigmas, of the same flowers, It it seems at first sight highly probable [th]at self-fertility has been gradually acquired through natural selection in

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individuals are absolutely alike. Therefore we can hardly avoid believing the conclusion that differences of an analogous nature in the reproductive system are sufficient to excite the mutual action of the sexual elements, and that unless there be such differentiation fertility fails.)

The appearance of highly self-fertilised varieties. We have just seen that self-fertility is an extremely variable character in certain cases, & we have differ much in degree, both with the species of the same genus, & sometimes with the individuals of the same species. We shall now to consider facts, observed on two probably on this three occasions, of the appearance of on two or three occasions of the varieties, which when self-fertilised were more fertile than their parents, or than the intercrossed plants of the corresponding generation.