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 160ʿ. 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
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| Format: | eBook |
| Language: | English |
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London
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, [1779?]
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| Collection: | Eighteenth Century Collections Online / ECCO - Collection details see MPG.ReNa |
| Item Description: | English Short Title Catalog, T122335. - Price on title page: (Price One Shilling.). - Reproduction of original from British Library |
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| Physical Description: | Online-Ressource ([4],40p.,II plates) 8° |