These pages are addressed directly to those who have in charge the physical training of children, and it is urged that the subject matter be read through to the pupils themselves. Yet it has been the aim of the author to make the contents of this volume so plain and simple that the boy or girl of reasoning years will find it possible to instruct himself or herself and a companion. Why should the Japanese physical training system, Jiu-jitsu, be taught to our young people? The answer is a ready one, and easy of comprehension by one who has had even the most ordinary opportunities for witnessing the feats of strength and endurance of Japanese athletes.
