Cipher (Rees's Cyclopaedia, v. 8, 1819 article)
From Kook Science
Blaire, William (1819), "Cipher", in Rees, Abraham, The Cyclopaedia; or, Universal Dictionary of Arts, Sciences, and Literature, 8, p. 176-207, https://archive.org/details/cyclopaediaoruni08rees/page/176
Bibliography of Cryptography: a Catalog of Books Pertaining to the Science of Codes And Cyphers. (Cincinnati, 1938)