My first thanks are due to the Cambridge Philological Society for their sponsorship and assistance in meeting the expenses of publication; I have also gratefully to acknowledge similar assistance from the Faculty Board of Classics in the University of Cambridge and from the Master and Fellows of Gonville and Caius College, to whose Society I have until recently had the honour and happiness to belong.

But for the encouragement of Mr H. T. Deas this book would not have been begun; it would not have been completed without that of Professor D. L. Page, who read and criticized an early draft of my notes on Book in. Mr E. A. Barber has kindly permitted me to quote from a correspondence which touched, to my profit, on many Propertian cruces. Mr R. G. M. Nisbet has generously and beneficially read the proofs. With my acknowledgments to these scholars I would join those due to the Syndics and staff of the Cambridge University Press.