Object Of Exercises. The tool exercises of this chapter are not intended to be performed one after the other, though a certain amount of this work is valuable in forming correct habits in the use of tools before really important work is undertaken. A sufficient number of these exercises should be worked out to familiarize the student with the constructive details of the supplementary models which form the actual course of work. They are also intended to inform the student of the important forms and uses of the different types of joints which are the basis of all construction in wood.

Many of the exercises are shown in isometric projection, and are planned to serve only as a basis from which working, or scaled, drawings may be made by each student, before the actual work is begun.