[21]

Worms are scarcely thought to [illeg] & [words illeg] about on the surface & die there [illeg]  It has often been said that at night worms never or very rarely leave their burrows completely; but this is an error. I have repeatedly observed on the evening morning day that the film of mud [words illeg] over gravel-walks, was plainly marked by their tracks, after there had been long rain & no frost from August to being the month of October, November, December & January, but more commonly during the later [illeg] months. The number of tracks were sometimes very numerous; & across one space of a about one an inch square there were 5 distinct tracks. They were could be sometimes be traced with to or from the mouths of the burrows on the gravel walk.; & we could be were followed for distances vary between 2 or 3 up to 15 yards. Worms can thus readily find new site to inhabit.—

[21v]

if the visits of bees are pre[page torn]   to believe that varieties growing near one another intercross. The five crossed plants of this species, however, exceeded in height the five self-fertilised plants only by a little. Phaseolus vulgaris is perfectly self-sterile; nevertheless, varieties growing in the same garden sometimes intercross largely. The varieties of the sweet pea Lathyrus odoratus, on the other hand, rarely or appear never to intercross in this country; and therefore though the flowers are not often visited by efficient insects, I cannot account for this