Concept
Cryptography--Early works to 1800
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The mathematical and philosophical works of the Right Reverend John Wilkins ... To which is prefix'd the author's life, and an account of his works / [John Wilkins].
Wilkins, John, 1614-1672.Date: 1708- Books
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Sermo mirabilis: or the silent language : Whereby one may learn perfectly in the space of six hours, how to impart his mind to his friend in any language, English, Latin, French, Dutch, &c. tho never so deep and dangerous a secret, without the least noise, word or voice; and without the knowledge of any in company. Being a wonderful art kept secret for several ages, in Padua, and now published only to the wise and prudent, who will not expose it, as a prostitute, to every foolish and ignorant fellow. / By Monsieur La Fin, once secretary to his eminence, the Cardinal of Richlieu. Licensed and entred according to order.
La Fin, Charles deDate: 1692- Books
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Mercury : or the secret and svvift messenger : Shewing, how a man may with privacy and speed communicate his thoughts to a friend at any distance.
Wilkins, John, 1614-1672Date: 1641