The teacher should, at this point, give a brief explanation of the valuable work done by the insects in carrying pollen to cause seeds to grow in the next flower that the insect visits. The position of the tiny brush (stigma, but do not give this name) held up by the seed case for rubbing the pollen off the insect, should also be observed.
Summary.—Name and point out the parts of the flower (calyx, corolla, pollen boxes, seed cases).
What useful work do insects do for the flower?
What reward do they receive for their work?
What advertisements do the flowers put out for attracting themselves? (Bright colours, sweet perfumes, and honey)
Flowers suitable for lessons in Form II are nasturtium, larkspur, snap-dragon, morning-glory, and sweet-pea.
Note.—Botanical names should be reduced to a minimum.
SOIL STUDIES
(See Soils by Fletcher.)
Soil should have a place in a Nature Study Course because: