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Oct 8th  Red Cabbage	Right-Hand
Left Hand, old leaf in same position, but fourth mark put tip nearer— The smaller cots with Bristles 8º 18   Light	The large Cots with Bristle 8º. 18'.   Light
out of sight	out of sigh
light moved out of glass 8º 55	8'.  Brighter morning  do   55'
Left Plant Blue	Right Plant red
9.25
10. 2'   down & to the left	10º 3.' fresh start
down to right 10 20'	10 20'   up & to left
10. 49'   far to right	10. 51 red far to left
11º 10 to right & a little rising	11º 10'   to right
11º 46'— to left parallel to upper line	11º 47' to right & considerably down
12' 16 far down to left	12. 16' far down to right
12 55'   up & a little to right	12º 55' high up & to left
1º— 28 to the right	1º 28 very high up to left & just out of glass
2º 10   right up  (Used)	2º 10' down & to right
still up 2 35	2. 37   down & to right
horizontal to right 3º.	3º down & to right
3º 28 down & a trifle to right	3. 30'   a little up.
4º a very short bit to left	4º greatly up & great distance to left mark on a vertical scratch
4º 37' high up & to the right	4º 37 gone beyond range of glass
5. 3 far up & to right
5. 30'   on edge of glass	5º 30' has com on to glass & a red cross made
5. 55' Has come into field but no mark made	5. 55 far to right & down
	7º 5' another red cross not united with other line.
8º. 25 This leaf in strong movement not marked	8º 25 far to left I have joined
Leaves with their cots. upright	8. 45'
	9 23 out of glass
Not sensitive to touch	do   .do  10º
	This bundle refers to movement of whole plants exposed to light & traced on vertical glass

 

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4 4

Chap 8

reproduction. Thus the females of certain flies (Culicidæ and Tabanidæ) are blood-suckers, while the males and live on flowers & have their mouths destitute of mandibles. *(1) The males of certain moths and some of crustaceans (e.g. Tanais) have their mouth closed rudimentary mouths and cannot of course eat feed. The Complemental males of certain cirripedes live like epiphytic plants either on the female or on the hermaphrodite form, and are destitute both of a mouth and of prehensile limbs. In these cases it is the male which has been modified and has lost certain important parts organs, which are common to all the other members of the same group. In other cases it is the female which has lost such parts; for instance wings lost by the female glow-worm has lot her wings, as have and by many female moths, some of which never leave their cocoons. The      legs, also, have been lost by Many female pra parasitic crustaceans have lost their natatory legs. In some weevil-beetles (Curlionidæ) there is a great difference between the male & female in the length of the rostrum or snout in the male and female *(2) 2 2; but the meaning of this differences in these cases and of many numerous many other analogous cases cases difference is not at all understood. Differences in structure in between the two sexes in relation to different habits of life are generally confined to the lower animals; but with Birds, as we shall hereafter see, some such cases occur in

[Descent 1: 254-5: "Thus the females of certain flies (Culicidæ and Tabanidæ) are blood-suckers, whilst the males live on flowers and have their mouths destitute of mandibles.1 The males alone of certain moths and of some crustaceans (e.g. Tanais) have imperfect, closed mouths, and cannot feed. The Complemental males of certain cirripedes live like epiphytic plants either on the female or hermaphrodite form, and are destitute of a mouth and prehensile limbs. In these cases it is the male which has been modified and has lost certain important organs, which the other members of the same group possess. In other cases it is the female which has lost such parts; for instance, the female glowworm is destitute of wings, as are many female moths, some of which never leave their cocoons. Many female parasitic crustaceans have lost their natatory legs. In some weevil-beetles (Curculionidæ) there is a great difference between the male and female in the length of the rostrum or snout;2 but the meaning of this and of many analogous differences, is not at all understood. Differences of structure between the two sexes in relation to different habits of life are generally confined to the lower animals; but with some few birds the beak of the male differs from that of the female.
1 Westwood, 'Modern Class. of Insects,' vol. ii. 1840, p. 541."]