describe the circle of flower leaves
as to number, colour, and relative position.

Find the stamens and describe as to number and position; find out how
the stamens are fitted to ensure that the pollen will get upon the
visiting insects.

Find the pistil and describe its shape. How is the stigma fitted for
receiving the pollen that is carried by the insect visitors.

_To the teacher._--The trilliums attract insects by their large white
and purple flowers, which are held up by their long stalks high above
the three broad leaves. The strong carrion-like odour of the purple
trillium is attractive to flies and beetles, while bees and butterflies
find the fragrance of the white trillium more to their liking.

The root-stock serves as a buried store of food to tide the plant over
the drought of late summer and the severe cold of winter. The
well-stocked cellar also explains the flourishing condition of the plant
in early spring. The six stamens stand on close guard around the pistil,
and insects forcing their way to the nectaries are well peppered with
pollen.

Continue the observation work by means of field exercises such as the
following:

What change takes place in the colour of the white trillium as it grows
old?

Find the ripened seed pods of the trillium, open them, count the number
of chambers, and examine the seeds.

Do trilliums grow from the same root-stock year after year?

As correlations, represent the trillium in colour and design an
embroidery pattern based on it.

Lessons similar to that on the trillium may be based on adder's tongue,
Indian turnip, Dutchman's breeches, violet, and clover.

ADAPTATIONS OF ANIMALS

It is not considered necessary to go outside the list of ordinary
animals to find sufficient illustrations of adaptations, and it is
recommended that attention be given to these during the study of animals
prescribed for the regular Course. This may be supplemented by an
occasional review of adaptive features for the purpose of emphasizing
the general fitness of animals for their varied habits and surroundings.
Care must be taken lest the attempt to explain structures by adaptation
be carried to an extreme, for it is impossible to account for all the
variations in animal forms.

The following list contains a few of the many examples of adaptations to
be met with in the Course prescribed for Forms II and III.

The horse walks and runs on the tips of its toes; this gives greater
s