75

Sept. 27th. Lupinus luteus— stem tied close to base of petiole leaf stood a vertical star at night

7°. 35' glass facing inland

7° 53 little down

8° 5'

8' 48 moving down

9.10' do

10.3' do

10 4.3

10.43'

11.15

12

12 45'

1º 28

2.7

2.50

3 5'

3° 55'

4.35'

O

Glass facing inward

8° 7' moving up to left & light

9.10 do

10.3 do.

11.15

12°

12° 45' day moderately bright

1. 28

5. 15'

has fallen all day in zig zags [sketch] Sept 27th

inward

has risen all day fully open till midday & then fell

28

30

Chap. 8

by the locomotive power of the antherozoids. travel by the aid of locomotive ciliæ to the female plant. With lowly organized animals, permanently fixed to the same spot, the male element when the sexes are separate is invariably brought, to the female form; and occasionally when the sexes are united, it is occasionally brought to the female organ of a distinct individual in order to prevent, as I have elsewhere explained shown, perpetual self-fertilization. We can see why with affixed animals of this kind, the male element should always be brought through some means to the female form; the one that is transported to a distance for the act of fertilization; for the ova, even if detached before being fertilized early and not subsequently requiring nourishment or protection after fertilization, would be from their large relative size less easily transported than the male element. Hence plants and the lower animals present are in this respect as analogous as the numbers of case. With animal kingdom gradually which have risen higher rose in the scale, and have became endowed furnished with organs of locomotive and sense, it would be by far the more secure plan that the male should himself bring carry the male element to the female, than that it should be trusted to the waves of the sea, and or other such means as while as cannot are necessarily employed not be avoided with affixed animals. And in order to make that the males should become effectual carriers and active searchers for the females, they have required, as a general rule it would only be requisite that they should be endowed with very strong passions; and then would easily follow which & these would surely be

[Descent 1: 274: "by the locomotive power of the antherozooids. With lowly-organised animals permanently affixed to the same spot and having their sexes separate, the male element is invariably brought to the female; and we can see the reason; for the ova, even if detached before being fertilised and not requiring subsequent nourishment or protection, would be, from their larger relative size, less easily transported than the male element. Hence plants14 and many of the lower animals are, in this respect, analogous. In the case of animals not affixed to the same spot, but enclosed within a shell with no power of protruding any part of their bodies, and in the case of animals having little power of locomotion, the males must trust the fertilising element to the risk of at least a short transit through the waters of the sea. It would, therefore, be a great advantage to such animals, as their organisation became perfected, if the males when ready to emit the fertilising element, were to acquire the habit of approaching the female as closely as possible. The males of various lowly-organised animals having thus aboriginally acquired the habit of approaching and seeking the females, the same habit would naturally be transmitted to their more highly developed male descendants; and in order that they should become efficient seekers, they would have to be endowed with strong passions. The acquirement of such passions would naturally follow from the more eager males leaving a larger number of offspring than the less eager."]