First Published in 2002. This book looks at the small groups of Japanese people who were perpetually endangered by foreign invasions, actual and potential, and even more by the disruptive forces of their own ambitious kith and kin. These people were scattered over a number of islands, each again divided by mountain ranges into a set of island-like districts, and they lived and enjoyed a perilous existence which made them stronger and still more secretive. Traits and tendencies of this order are in the strictest sense ultimate data of sociological analysis. The purpose of the present book is to facilitate these studies, by presenting a co-ordinated number of texts dating from the epochs in which the foundations of Japanese civilization were laid.