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 ; together with, An abstract of Dr. Wilkins's essays towards a real character and a philosophical language - Wilkins, John 1614-1672 (J. Benjamins Pub. Co., 1984)
Originally published in 1707. - "Reprinted from the third edition: The mathematical and philosophical works of the Right Reverend John Wilkins (1708)."
Includes bibliographical references