The description and use, of a new constructed octant, sextant and quintant : By His Majesty's patent, being an improvement on the Hadley's quadrant. By either of which, altitudes are taken, and angular distances measured to the greatest precision from 0. to 160ʻ. Without a back observation, and with double the space of illumination, or field of view: also a new meth[o]d of adjusting the glasses, and applying the instrument for the purposes of finding the latitude and longitude at sea.. By G. Wright.

Author/creator Wright, Gabriel
Format Electronic
Publication InfoLondon : Printed for the author, no. 36, Little Britain; and sold by Mr. Martin, optician in Fleet-street, and the booksellers in town and country, [1779?]
Description4 unnumbered pages, 40 pages, II plates ; 8⁰.
Supplemental ContentFull text online
Subjects

General notePrice on title page: (Price One Shilling.)
General noteReproduction of original from British Library.
References English Short Title Catalog, T122335.
Reproduction noteElectronic reproduction. Farmington Hills, Mich. : Cengage Gale, 2009. Available via the World Wide Web. Access limited by licensing agreements.

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