them. They will need them constantly for comparison and reference.]

At the recitation, the papers can be read and the points mentioned
thoroughly discussed. This will take two lesson-hours, probably, and the
drawing may be left, if desired, as the exercise to prepare for the second
recitation.

[1]The buds of Horsechestnut contain the plan of the whole growth of the
next season. They are scaly and covered, especially towards the apex, with
a sticky varnish. The scales are opposite, like the leaves. The outer
pairs are wholly brown and leathery, the succeeding ones tipped with
brown, wherever exposed, so that the whole bud is covered with a thick
coat. The inner scales are green and delicate, and somewhat woolly,
especially along the lapping edges. There are about seven pairs of
scales. The larger terminal buds have a flower-cluster in the centre, and
generally two pairs of leaves; the small buds contain leaves alone, two or
three pairs of them. The leaves are densely covered with white wool, to
protect them from the sudden changes of winter. The use of the gum is to
ward off moisture. The flower-cluster is woolly also.

[Footnote 1: All descriptions are made from specimens examined by me.
Other specimens may differ in some points. Plants vary in different
situations and localities.]

The scars on the stem are of three kinds, leaf, bud-scale, and
flower-cluster scars. The pupils should notice that the buds are always
just above the large triangular scars. If they are still in doubt as to
the cause of these marks, show them some house-plant with well-developed
buds in the axils of the leaves, and ask them to compare the position of
these buds with their branches. The buds that spring from the inner angle