them my immense gratitude; they must not, though, be reckoned re-
sponsible for my errors. The critical apparatus has been reduced to a
minimum, though an extended bibliography is attached. Nearly every
quotation and many titles in the bibliographical notes have been con-
densed, and, to aid the reader, I have deliberately omitted the custom-
ary three dots. References in the footnotes will nearly always indicate
where the full quotation may be found. For the important men men-
tioned I have given the date of death, where it is definitely known,
or, where the exact year is uncertain, I have used what seemed to be
the best estimate. Inaccuracies must persist despite care and patient
checking. The author hopes to bring out a second edition; he would
appreciate comments from his readers.

FREDERICK B. ARTZ

Oberlin, Ohio: October, 1952

A new edition being called for in less than a year, the author has
taken the occasion to make a large number of changes in phrasing,
to correct misprints, to extend the description of Aquinas' philosophy,
to bring the bibliography up to date, and to make a new and fuller
index. He is indebted to a number of colleagues and correspondents
for valuable suggestions.

F. B. A.

January 15, 1954

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