258 ' AGENCY OF INSECTS 
thers liberated were probably brought out by the shaking 
of the bushes by the wind. 
Considerable pollen was found stuck on the corollas by 
the nectar, which was uncommonly abundant, as no in- 
sects of much size were allowed to remove it. The wind 
might have carried some of this pollen to other flowers, 
or it might have dripped from those above to flowers be- 
low in drops of water (there were two showers during 
these experiments); but I infer this was not the case in 
the examples mentioned, because the flowers, especially 
the stigmas, remained fresh much longer than those 
which were left exposed to the visits of insects. 
The flowers of several Honeysuckles, of the Mustard 
Family (Crucifere), of the Bladder-nut (Staphylea tri- 
Jolia L.) were noticed, and in each ĉase the conclusion 
reached was, that the chances are better for cross fertil- 
ization than otherwise. 
The long cylindrical, bell-shaped corollas of site Purple 
Foxglove (Digitalis purpurea) are much visited by bees. 
flowers are mostly obliquely suspended, and in all 
thus situated, the stamens and style are close to the up- 
per side of the corolla. The insects alight at the opening 
of the corolla, on the side opposite the stamens. This is 
generally the lower side as the flowers hang, then reach- 
ing above, they catch hold of the style and stamens, & 
crawl in with the back down, brushing the whole length 
of the underside of the body, first against the stigma, 
and, farther on, against the anthers. 
- They seem unable to get into the flower without catch- 
ing hold of the stamens, and it is often with considerable 
difficulty that they enter at all, for they are obliged to 
hold on to the edge with the hind legs until glad 
n catch the stamens with their fore legs. 
