TO avoid confusion, the subject herein treated is con sidered in three divisions. Part I. Contains the essen tial facts concerning common bench tools for wood; it describes their action, explains their adjustments, and shows how they may be kept in order. Part II. Presents a course of practice by which ability to use the tools may be ac quired and Part III. Discusses such forms and adaptations of joints as will meet the requirements of ordinary construe tion. It is not expected that the student will complete Part I. Before entering upon Part II., or that he will finish Part II. Before commencing Part III. He will find greater profit in using them together. For example, a shop exercise involv ing the chisel (part II.) should be accompanied or preceded by a study of the chisel (part I.) again, the various forms of mortise — and-tenon joints (part III.) will be better under stood and more easily remembered, if considered during the time when types of such joints are under construction in the shops (part In the writer's experience with classes of students; one hour has been given to class-room work for every five hours given to shop work. By this apportionment, Parts I. And III. Can be mastered in the class-room while Part II. Is in progress in the shops.