[1]

(1

( Worms do not appear seem to be so less as sensitive to moderate radiant heat than is th [illeg]ten they are is to a bright light.— I judge of this from having held in a dull red poker head to a dull redness  near to five worms dark  at a distance, which caused  that  a very sensible degree of warmth th  was felt by in my hand. One of the the five worms took notice; a second withdrew into its burrow but not of quickly; the third & fourth much more quickly & the fifth with e as quickly as possible. The light of  from a candle concentrated by a lens generally induced  caused  a much  more rapid movement retreat.)

(Worms have no  do not possess any to any sense of hearing. They took not the least when  of the shrill notes of   a metal-whistle when which was repeatedly & shrilly sounded near them, nor of the deepest & loudest tones of a bassoon. They were indifferent to shouts, care being taken that the breath did not strike them. When placed on a table close to the keys of a piano-forte, which was played as loudly as possible, they remained quite perfectly quiet.—)

[1v]

386

Petunia

Table 83

Plants growing in the open ground.

Westerham-crossed plants (from self- fertilised plants of the 4th generation crossed by a fresh stock.)	Intercrossed plants (plants of one and the same stock inter- crossed for five generations.)	Self-fertilised plants (self-fertilised for five generations)
34 2/8	38	27 3/8
36 2/8	36 2/8	23
35 2/8	39 5/8	25
32 4/8	37	24 1/8
37	36	22 4/8
36 4/8	41 3/8	23 3/8
40 7/8	37 2/8	21 5/8
37 2/8	40	23 4/8
38 2/8	41 2/8	21 3/8
38 5/8	36	21 2/8
366 6/8 76	388 6/8 76	233 1/8 13

The ten Westerham-crossed plants here average 36.67 inches in height; the ten intercrossed plants 38.27 inches; and the ten self-fertilised 23.31 inches. These three lots of plants were also weighed; the ten Westerham-crossed plants weighed 28 oz.; the intercrossed 41oz. and the self-fertilised 14.75oz. We thus get the following ratios.

The Westerham-crossed plants in height to the self-fertilised } as 100 to 63