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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

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

Call Number:
Creator: Wright, Gabriel, mathematical instrument maker
Language:
Date: ca. 1785]
Publisher: s.n.,
Subjects:
Genres:
Types of Resource:
Description:
"Suppose ... the following observation were taken June 10, 1785"--P. 2.
"Made and sold by Gregory and Wright (the patentees), mathematical instrument makers near the India House, Leadenhail Street"--p. 4.
Folded plate (20 x 30 cm.) loose, originally tipped in between p. 2-3.
Physical Description:
4 p., [1] folded leaf of plates : ill. ; 22 cm.
Rights:
The use of this image may be subject to the copyright law of the United States (Title 17, United States Code) or to site license or other rights management terms and conditions. The person using the image is liable for any infringement.
Curatorial Area: Beinecke Library
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Object ID: 10186899
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