As may be inferred from the title-page, this book k. has been written to mark the four hundredth anniversary of Cambridge printing.

Of the original authorities used in its compilation the most valuable has been the large collection of documents relating to the Press which are preserved in the Registry of the University. Access to this collection has enabled me to glean some fresh information concerning the careers of the university printers and a series of accounts and vouchers from 1697 to 1742 has brought to light several new titles of books printed at Cambridge during that period.

The making of this book, however, would not have been feasible, in the limited time at my disposal, had I not been free to use the work of the pioneers, from Christopher Wordsworth and Henry Bradshaw onwards, and the chief items of this work are recorded in the short bibliography on page xiii.

In addition, my personal obligations are many: Mr Francis Jenkinson, University Librarian, Mr Charles Sayle, Mr A. T. Bartholomew, and many other members of the Library staff have helped me ungrudgingly, both in putting their own special knowledge at my command and in guiding me to the proper authorities; the Registrary (Dr J. N. Keynes) and his staff have similarly given me ready access to the documents in their charge; Mr J. B. Peace, University Printer, provided me with the picture which serves as frontispiece and with the revised plan of the Press buildings; Mr G. J.