Of the Manuscripts volume 125 copies were printed, this being no. 12. Of the Early printed books volumes, 175.
The English incunabula were cataloged by E. Gordon Duff; Horae by A. W. Pollard; French and Italian incunabula by Pollard and Proctor jointly; German illustrated books by Proctor; incunabula of German and the Low countries by Stephen Aldrich; manuscripts by M. R. James. General editor, A. W. Pollard.