Exercises on Lesson XI.

1. Look under low branches of larch and spruce trees in spring for the nest of the wasp. Make a drawing of it. Cut it open and examine the interior. 2. Compare a piece of the wall of the nest with the torn edge of (1) a piece of coarse brown paper and (2) a piece of ordinary newspaper. 3. Write out the life-history of a wasp. 4. Compare the combs of the hive bee with those of the wasp. Notice that the former are placed vertically in the nest, the latter horizontally. Observe how the wasp’s combs are kept apart.