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Geometrical dyalling, or, Dyalling performed by a line of chords onely, or by the plain scale wherein is contained two several methods of inscribing the hour-lines in all plains, with the substile, stile and meridian, in their proper coasts and quantities : being a full explication and demonstration of divers difficulties in the works of learned Mr. Samuel Foster deceased ... : whereto is added four new methods of calculation, for finding the requisites in all leaning plains ... : also how by projecting the sphere, to measure off all the arks found by calculation ... : lastly, the making of dyals from three shadows of a gnomon ... /

Main Author: Collins, John, 1625-1683.
Corporate Author: Early English Books Online.
Format: Online Book
Language:English
Published: London : Printed by Thomas Johnson for Francis Cossines and are to be sold at his shop ... : also to be sold by Henry Sutton ..., 1659.
Series:Early English books online.
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Online Access:http://ezproxy.villanova.edu/login?URL=http://gateway.proquest.com/openurl?ctx_ver=Z39.88-2003&res_id=xri:eebo&rft_val_fmt=&rft_id=xri:eebo:image:61099
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