[8]

(6

much more easily startled at one time than at another. It is also familiar to every sportsman that animals while grazing, fighting or otherwise employed courting have their minds on  other so much absorbed that they hardly   less to all any signs of danger & much more easily approached than at other times. This parallelism comparison between the actions of one [illeg] of the of the   higher animals  which property among  are endowed with  one & one one so low & & so cont [illeg] in the scale of organisation as an earth-worm,   may probably in both cases mental power of man [illeg]    may appear very improbable far fetched; for we thus attribute to the worm attention and some mental power, nevertheless I can see no reason to doubt it in practice.) (Although worms cannot be said to possess vision, their sensitiveness to light

worms are enabled by these

[illeg]. The sensitiveness of worms to light, what cannot be ought not be what does not deserve to   called vision any more than  with any trace of  destitute of   In a [illeg] or of plants, cannot fail to be of service to them by [illeg] them to  X enable them

Allow them & to distinguish between th day & night th & apparently in no other manner. But they are thus enabled to   & though they they then can them to escape by their nocturnal habits extreme danger from the many terrestrial animals which prey on them. Their [4 words illeg] withdrawl how

[illeg]

[8v]

388

Petunia

to the intercrossed plants in a much higher degree than in the pots; and this appeared due to their being much less branched, from having germinated in greater numbers and consequently being much more crowded. Their leaves were of a brighter green than those of the intercrossed and self-fertilised plants.

Relative fertility of the same three lots of plants. None of the plants in pots in the greenhouse ever produced a capsule; and this may be attributed in chief part to the exclusion of moths. Therefore the fertility of the three lots could be judged of only by that of the plants growing out of doors, and which from being left uncovered were probably cross-fertilised. The plants in the three rows were exactly of the same age and had been subjected to the same closely similar conditions, so that any difference in their fertility must depend on be attributed to their three-fold different origin; namely, from plants self-fertilised for four generations and then crossed with a fresh stock; from plants of the same old stock intercrossed for five generations; and from others self-