Context

Context of An accurate system of surveying; : in which is contained, I. Decimal fractions, in a plain, concise, and easy manner. II. The extraction of the square-root. III. Plane trigonometry, rectangular and oblique. IV. An exact method to cast up the contents of lands. V. Field surveying. : The whole being performed without the use of scale and compasses, or a table of logarithms. In which is given, some account of the variation of the needle, and the causes of its attraction.
Processing Feedback ...