[2]

(4 2

The nervous system is fairly well developed, & the two almost confluent cerebral gl ganglia are situated very near to the anterior end of the body.)

Sense-organs. — Worms are destitute of eyes, & & I considered at first that they were quite quite insensible to light; as I many I repeatedly markedly repeatedly ob them which I kept in [illeg] by the aid of a candle, & other other persons have worked at them at night out of doors by the aid of doors by with a lantern, & as I repeatdely did so with (as have many other person) * Zoologist vol 7. 1849, p. 2576 & some of my friends    they were rarely in any way affected, although extremely timid animals. Many Other persons have made sometimes  [several deleted words illeg] * I imagined, therefore, that they distinguished the day from the night by the some difference in the warmth & dryness of the air. But Hoffmeister, however, states* B that worms are they

 that worms, with the exception of a few individuals, most worms are extremely sensitive to light; but he admits that generally a certain time is requisite for its action, & that some a few individuals show no signs of sensitiveness. These statements led me to make observe many observations on  on many successive nights many worms kept in pots, which were covered with a sheet of

[2v]

367[?]

Sarothamnus

there was no marked difference between the two lots. But even at this early age the leaves of the self-fertilised seedlings were smaller and of not so bright a green as those of the crossed seedlings. The pots were kept in the greenhouse, and as the plants on the following spring (1868) looked unhealthy and had grown but little the pots, they were plunged, still in their pots, into the open ground. The plants all suffered much from the sudden change, especially the self-fertilised, and two of the latter died. The remainder were measured, and I give the measurements in the following table, because I have never in any other species seen so great a difference,    betweeen the crossed & self-fertilised seedlings   at so early an age.

Table 58

Sarothamnus scoparius (very young plants).

No. of Pot	Crossed Plants	Self-fert. Plants.
I	Inches. 4 4/8 6 2	Inches. 2 4/8 1 4/8 1
II	2 2 4/8 0 4/8	1 4/8 1 0 4/8
Total in inches	17 4/8.5	8