Tables requisite to be used with the nautical ephemeris, for finding the latitude and longitude at sea published by order of the Commissioners of Longitude von Maskelyne, Nevil 1732-1811

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Star altitude curves Latitude 40° to 50° north, positioned for epoch 1 January 1945,(U.S. Papent No. 2,143,042) von Weems, Philip Van Horn 1889-

Tables requisite to be used with the nautical ephemeris for finding the latitude & longitude at sea to which are now added, the most useful astronomical tables by Maskelyne, La Lan... von Garnett, John

De Brahm's zonical tables for the twenty-five northern and southern climates in which, for every five minutes difference of altitude, the parallel with all the degrees, for each de... von De Brahm, John Gerar William 1717-1799