The present volume contains two curious documents concerning Dr. Dee, the eminent philosopher of Mortlake, now for the first time published from the original manuscripts. I. His Private Diary, written in a very small illegible hand on the margins of old Almanacs, discovered a few years ago by Mr. W. H. Black, in the library of the Ashmolean Museum at Oxford. II. A Catalogue of his Library of Manuscripts, made by himself before his house was plundered by the populace, and now preserved in the library of Trinity College, Cambridge. The publication of this Diary will tend perhaps to set Dee's character in its true light, more than any thing that has yet been printed.