COPYRIGHT, 1889, BY AMERICAN ECONOMIC ASSOCIATION, BALTIMORE: FROM THE PRESS OF GUGGENHEIMER, WEIL & CO 1890. NOTE. In offering the following pages to the public, the writer wishes to acknowledge his great obligation to Dr. Henry C. Adams, of the University of Michigan, to whose kind supervision, valuable suggestions and constant encouragement this essay owes its origin. He is also indebted to Mr. Frederick C. Hicks, of the University of Michigan, for assistance in proofreading, and to Prof. K. Mitsukuri, of the Imperial University, for much useful information. UNIVERSITY OF MICHIGAN, Ann Arbor, Mich., October, 1889. YEIJIRO ONO, Ph. D. |