CHAPTER V.

THE CARPENTER’S LABORATORY.

The Natural History of the Pine-tree. -- How it is Converted into Lumber, what it is Worth, and how it is Consumed. -- Where the Students get Information. -- Working Drawings of the Lesson. -- Asking Questions. -- The Instructor Executes the Lesson. -- Instruction in the Use and Care of Tools. -- Twenty-four Boys Making Things. -- As Busy as Bees. -- The Music of the Laboratory. -- The Self-reliance of the Students. 21