Digiti-lingua, or, The most compendious, copious, facil, and secret way of silent converse ever yet discovered : shewing, how any two persons may be capable, in half an hours time, to discourse together by their fingers only, and as well in the dark as the light / by a person who has conversed no otherwise in above nine years.
"The directions herein are so clear and the method so extensive, (yet both so superlatatively easie) that if six persona are in company, (and each of them well versed in the design) yet two of them may discourse together, and the other four wholly ignorant of what they mean."
Reproduction of original in Cambridge University Library.
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"The directions herein are so clear and the method so extensive, (yet both so superlatatively easie) that if six persona are in company, (and each of them well versed in the design) yet two of them may discourse together, and the other four wholly ignorant of what they mean."
Reproduction of original in Cambridge University Library.
"The directions herein are so clear and the method so extensive, (yet both so superlatatively easie) that if six persona are in company, (and each of them well versed in the design) yet two of them may discourse together, and the other four wholly ignorant of what they mean."
Reproduction of original in Cambridge University Library.
