Mercury, or, The secret and swift messenger : Shewing, how a man may with privacy and speed communicate his thoughts to a friend at any distance (1694)
Wilkins, John, 1614-1672 · London, Printed for Richard Baldwin · leaf 119
the breadth of the Plate; and then byapplication of this to the Epiftle, it iseafieto conceive how fuch a writingmay be both competed and relblved.The Points, the ends of the Lines, andthe Angles of the Figures, do each ofthem by their different fituations, ex-prefs a feveral letter. This $6 7he… … The larger thefe directories ate, byfo much the Jefs liable unto errorwill the writing be, that isdefcribedfrom^them. It is eafie to apprehend, by thefeparticulars, how a man may contriveany private faying in the form of aLandskip or other pjdture. There maybe divers the like ways, whereby…
Cryptography · Gesture · Sign language
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