GRADE VIII.
(Woodworking Group VII.)
Lesson 22.
Recitation—
What is the life blood of a tree called?
Beginning with the tree in early spring, explain the movement or lack of movement of the sap.
The effect upon the tree of the sap’s movement in the spring?
What part do the leaves perform in the digestive process?
Chlorophyll? Assimilation?
The sap circulation from mid-summer to the end of summer?
Effect upon the leaves?