The Memoria Technica Cipher. Abeles, F. F. Cryptologia, 27(3):217--229, 2003.
The Memoria Technica Cipher [link]Paper  doi  abstract   bibtex   
A comprehensive analysis of the ciphers invented by Charles L. Dodgson (Lewis Carroll) and how he used them indicate that his Memoria Technica (1875), a variant of a mnemonic scheme first proposed by Richard Grey in 1730, is properly viewed as Dodgson's fifth cipher system. He used his Memoria Technica cipher as a tool in work that was never published, a projected book whose working title was “Logarithms by Lightning: A Mathematical Curiosity.” The logarithms project, a joint work with his colleague, Robert Edward Baynes, is examined in detail.
@article{abeles_memoria_2003,
	title = {The {Memoria} {Technica} {Cipher}},
	volume = {27},
	issn = {0161-1194},
	url = {http://www.tandfonline.com/doi/abs/10.1080/0161-110391891892},
	doi = {10.1080/0161-110391891892},
	abstract = {A comprehensive analysis of the ciphers invented by Charles L. Dodgson (Lewis Carroll) and how he used them indicate that his Memoria Technica (1875), a variant of a mnemonic scheme first proposed by Richard Grey in 1730, is properly viewed as Dodgson's fifth cipher system. He used his Memoria Technica cipher as a tool in work that was never published, a projected book whose working title was “Logarithms by Lightning: A Mathematical Curiosity.” The logarithms project, a joint work with his colleague, Robert Edward Baynes, is examined in detail.},
	number = {3},
	urldate = {2012-09-02TZ},
	journal = {Cryptologia},
	author = {Abeles, Francine F.},
	year = {2003},
	keywords = {acrostics, anagrams, cryptography, cryptography -- late modern, poetry},
	pages = {217--229}
}

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