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Mansfield, Jared. 5914.1 —4+4E.197.5 Essays, mathematical and physical: containing new
theories and illustrations of some very important and difficult subjects of the sciences. Never be- fore published. New-Haven. Morse. Ne de x, (1), 274, (47) pp. 13 folded pls. 8°. Contents.e=- Of negative quantities in algebra; Goniometrical properties; Nautical astronomy; Of the longitude; Orbicular motion; Investigation of
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