[84]

Lupinus arboreus longest exterior leaflet with Bristle

8° 40'

9° 5 down & a little to left — sky bright

9.33 a little down & to left

10 14 down & to the right

10 52' rose a little bit

11.10 up

11° 36 a trace down

12 4 a trace up — not magnified enough

12° 6' new dot— put the standard nearer

12° 23 up.

12.45 down

1.4' up

1.22 up & a little to right

1.45 a little to the left

2. 24 down

2 49 — up 3°. 3— a little up

3. 32 — far up

3 57 a very little way up

4.28 down (I suppose beginning of Sleep)

4.55 down

5 19° down

5 54 down & to left

6 34 much down & to left

7° 15 down

8° down to left , on margin of glass—

9° far down out of range of glass

Leaf slightly asleep, later than all the other leaves

Oct 12 7° 50' +

8 5' to left & falling

Distance fr glass to end of Bristle 11 3/8

to Card mark 13 2/8

11 3/8

1/ 7/8

(Used)

(58

63

Chapt. 8

which classes, that the young male shall differ more or less from the adult male, & in so far resemble the female. Hence it is almost certain that the successive variation, through which has been preserved through sexual selection could the adult male has been modified can not all have first appeared in the much occurred much before the period of age for reproduction, otherwise the young males used probably resemble the adult mature male. have been similarly modified.

How then are we to account for this usual general remarkable coincidence between the periods period of variation & that of sexual selection,— principles which are quite independent of each other? I think we can see that reasons causes: it is not that the males have never varied at an early age, but that such variations have been preserved much more early generally been lost, whilst their variations occurring at a later period of life age have been preserved.)

All animals produce many more offspring than

[Descent 1: 297: "When the sexes differ in these respects, it is also, as we have seen, an extremely general law that the adult male differs more or less from the young male; and we may conclude from this fact that the successive variations, by which the adult male became modified, cannot have occurred much before the age for reproduction. How then are we to account for this general and remarkable coincidence between the period of variability and that of sexual selection,—principles which are quite independent of each other? I think we can see the cause: it is not that the males have never varied at an early age, but that such variations have commonly been lost, whilst those occurring at a later age have been preserved.
All animals produce more offspring than can survive to maturity; and we have every reason to believe that death falls heavily on the weak and inexperienced young."]