I am glad of this opportunity to acknowledge my indebtedness to the various editors of Donne's works: to Mr. John Sparrow for his edition of the Devotions, to Mr. John Hayward for his editing of miscellaneous prose pieces, and, most of all, to Professor Herbert J. C. Grierson for his invaluable preparation and annotation of the poems. Of the doubtful pieces appended to Professor Grierson's edition it should be noted that I have used only the verse letter to Lady Huntingdon, "That unripe side of earth," which Professor Grierson himself admitted into the canon in his later one-volume edition.
Although I began my work on Donne's imagery before the appearance of Professor Caroline F. E. Spurgeon's Shakespeare's Imagery, I owe much to her analyses of the nature of imagery and her spirited and illuminating explorations of its potentialities.
For their suggestions and helpful criticism of my work I wish to thank Professor Oscar J. Campbell, Professor William Y. Tindall, and Dr. Henry W. Wells of Columbia University. I profited, too, from the friendly advice of Professor Mark Van Doren, and thereby added to an old debt.
Most particularly I wish to express my gratitude to Professor Frank Allen Patterson of Columbia University for the guidance and encouragement he gave me from the beginning of this work to the end.
MILTON A. RUGOFF