The cipher of Roger Bacon /

Bibliographic Details
Main Author:	Newbold, William Romaine, 1865-1926
Other Authors:	Kent, Roland G. (Roland Grubb), 1877-1952
Format:	Book
Language:	English
Published:	Philadelphia : University of Pennsylvania Press, 1928.
Subjects:	Bacon, Roger, > 1214?-1294. Ciphers.

Description
Physical Description:	xxxii, 224 pages, 30 unnumbered leaves of plates : illustrations, facsimiles, portrait ; 25 cm.
Bibliography:	Includes bibliographical references.