and, in particular, what we have called the "ecclesial dimension"
of his thought, have never been considered with the attention
they ought to have drawn.

The five lectures represented in this volume are only out-
lines. Each opens up a topic worthy of much more profound and
detailed study. Our hope is that some readers will find here an
invitation and a stimulus to go further and to join the ranks of
the Zwingli scholars.

We would like to express our gratitude to those who gave us
the opportunity of presenting these lectures in the university
town of Princeton: former President John A. Mackay, President
James I. McCord, and Professor George S. Hendry, whose kind-
ness, understanding, hospitality, and friendship remain for us a
very happy remembrance. My deep gratitude goes to Walter J.
Hollenweger, whose patience was put to the test in verifying my
quotations, and, last but not least, to Lewis S. Mudge, who under-
took the hard task of looking carefully at this text to make it
readable in English.

J. C.

Geneva, April 1962

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