Mr. John T. Duffner, of the antitrust division, are due special
thanks. They are, of course, in no way responsible for the views
herein expressed.

The Graduate School of Arts and Sciences and the Social
Science Research Institute of Washington University, Saint Louis,
helped the author complete this study by providing several grants
for stenographic services. A research grant from the Graduate
School enabled the author to devote the summer of 1956 exclu-
sively to this project.

Most of the real cost has been borne by the author's wife and
children. For most of their lives the latter have not known what it
would be like to have a father not engaged in the writing of a
book.

D. D. M.

Bloomington, Indiana
December, 1958

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