The description and use of an instrument called the dovble scale of proportion by which instrument, all questions in arithmetick, geometry, trigonometry, astronomy, geography, navigation, fortification, gunnery, gaging vessels, dialling may be most accurately and speedily performed without the assistance of either pen or compasses / by Seth Partridge., by Seth Partridge

Title:	The description and use of an instrument called the dovble scale of proportion by which instrument, all questions in arithmetick, geometry, trigonometry, astronomy, geography, navigation, fortification, gunnery, gaging vessels, dialling may be most accurately and speedily performed without the assistance of either pen or compasses / by Seth Partridge.
Author:	Partridge, Seth, 1603-1686
Note:	London : Printed by William Leybourn for William Wright ..., 1661

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Subject:	Slide-rule -- Early works to 1800
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