A help to calculation, or, Two tables: the one of decimal numbers, and the other of their logarithmes ... : as also tables of declination, right and oblique ascensions, ascensional difference, and other tables of the Primum mobile ... / by J. Newton.

Licence: Public Domain Mark

Credit: A help to calculation, or, Two tables: the one of decimal numbers, and the other of their logarithmes ... : as also tables of declination, right and oblique ascensions, ascensional difference, and other tables of the Primum mobile ... / by J. Newton. Source: Wellcome Collection.