It is particularly difficult in a volume of this kind to acknowledge all assistance rendered by others. There can be no doubt, however, who, in this particular case, heads the list. I am chiefly indebted to Dr. B. B. Wallace, who was secretary of my conference at Williamstown. He not only rendered efficient service in the administrative work of the conference in Williamstown, but he has edited the material in the Supplement, and made some stimulating and useful comments in the form of footnotes. He also contributed substantially to my chapters by his many helpful suggestions, particularly in the chapter dealing with "Population, Migration and Race Rivalry."

The many distinguished authorities who spoke at my conference at Williamstown have likewise my sincere gratitude. They contributed chiefly to the success of the conference. My gratitude is extended not only to them but to Government Departments, Cabinet members and other officials who recognized the importance of the Institute of Politics and sent men who could speak with authority on different subjects in the discussions of my conference.

In addition, I am indebted to those who on the many subjects covered by this volume contributed facts or helped to put the manuscript in shape for publication. It gives me pleasure to

acknowledge the services of the following: Gerard Swope, President of the General Electric Company; A. L. Salt, Vice-President of the Western Electric Company; Wilson Compton, Grinnell Jones, Alan G. Goldsmith, Henry C. Morris, A. W. Ferrin, C. R. DeLong, John L. Bray, W. A. Graham Clark, C. W. Bahr, H. L. Lourie, and Miss R. M. Ridgway.

The views which I express in this book are personal. They are not, it need hardly be said, to be attributed to the United States Tariff Commission, of which I am a member, because of their publication by me. I take full and sole responsibility for all statements of fact and expressions of opinion. In the Supplement the statements made by the respective contributors are upon their own authority.

Raw materials and foodstuffs sound very materialistic. They suggest the necessity of basing our conclusions on hard facts, but I believe deeply in the force and abiding strength of moral and spiritual ideals. In the discussions of this volume I have endeavored, as I stated at the conclusion of my last conference in Williamstown, to keep "our feet on the ground and our eyes on the stars."

This volume is respectfully dedicated to Harry A. Garfield, whose vision and devoted service have created the Institute of Politics.

WILLIAM S. CULBERTSON.

THIS volume is the product of the Round Table Conference over which Mr. Culbertson presided at the Institute of Politics, at Williamstown, Massachusetts, during July and August, 1923. Mr. Culbertson has brought up to date and augmented the subject matter which he presented at that time in his round table addresses. The Supplement contains all the special addresses made at the different sessions of the Round Table Conference.

Wherever possible footnote references are inserted in the monograph by Mr. Culbertson calling attention to special addresses in the Supplement elaborating and developing special phases of the particular subject under discussion. There is not always complete agreement between the position taken by Mr. Culbertson and some of those who spoke at the conference. This adds rather than detracts from the value of the volume, as it reflects the spirit of freedom which characterized the discussions at the Institute of Politics.

This volume is published with the coöperation of the Institute of Politics. The spirit of that Institute and particularly of the presentation made by Mr. Culbertson is shown in the comment

by Sir Edward Grigg, at the Round Table Conference on August 7th, 1923:

I am very grateful to Mr. Culbertson for letting me say a few words this afternoon, because I should like the opportunity of

. congratulating Mr. Culbertson himself on the, as it seems to me, extraordinarily fair objective way in which the discussions of this Round Table have been carried on. I marked with great appreciation the fact that, in dealing with subjects which are highly controversial, the facts are always clearly stated without color. And I think it is a very great tribute to him and the way the whole Round Table is conducted that it is so. It is also a great tribute to the Institute of Politics.

In substance and in presentation this volume is a distinct contribution to the facts that determine the wholesomeness of international relations on the one hand, and the need for responsible government in international relations on the other. The subject is handled in a masterful and convincing manner. Mr. Culbertson has balanced well the various interests involved. His conclusions looking toward a more just and effective world order he has reached with the poise of the scholar and of the experienced administrator. CLYDE L. KING, Editor.