Extent of Digitization: Completely digitized / Format: text / Subject (Topic): Navigation --Early works to 1800

Creator:: Wright, Gabriel, mathematical instrument maker
Published / Created:: ca. 1785]
Call Number:: 1986 361
Image Count:: 5
Description:: "Made and sold by Gregory and Wright (the patentees), mathematical instrument makers near the India House, Leadenhail Street"--p. 4.
Publisher:: s.n.,
Subject (Topic):: Astronomical instruments --Early works to 1800, Navigation --Early works to 1800, and Octants
Found in:: Beinecke Rare Book and Manuscript Library > The description of a new, easy, and accurate method of adjusting the back observation glass : of Wright's improved patent octant, and the method of using it in taking the apparent altitude of the sun at sea and measuring angular distance from 0 to 180 [de

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