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Radcliffe Tracts 47 (13)Stevens, John
A Method of Ascertaining the Latitude in the Northern Hemisphere by a Single Altitude of the Polar Star, at any time; with Tables computed for that purpose
Cambridge: Printed by F. Hodson, at the Corner of Green-street, and Sold by W. Heather, Leadenhall-Street, London, 1800.
[1934-41]
1800