An extract taken from Dr. Rees's New cyclopaedia on the article Cipher
Subtitle: being a real improvement on all the various ciphers which have been made public, and is the first method ever published founded on a scientific principle, lately invented by W. Blair ... to which is now first added, a full discovery of the principle ...
By: by M. Gage.
Contributors: Blair, William, 1766-1822.; George Fabyan Collection (Library of Congress)
Publisher: J.W.H. Payne
Published: 1819
Place of publication: Norwich
Language: eng
Number of pages: 25
Subjects: Ciphers.
Notes: Galland, J.  Cryptology, p. 72
Published in 1819. Cf. DNB (under Blair)
LC copy is item no. 325 of the George Fabyan Collection.