Original geometrical illustrations, or, The book of lines, squares, circles, triangles, polygons, and c. Showing an easy and scientific analysis for increasing, decreasing, and altering any given circle, square, triangle, ellipsis, parallelogram, polygon, and c. to any other figure containing the same area, by plain and simple methods, alid down agreeably to mathematical demonstration, indipensable to architects, artists, artificers, builders, cabinet makers, carpenters, engineers, (military and civil), engravers, glass cutters, jewellers, machinists, painters, sculptors, statuaries, and c. Containing also a variety of useful information, intended as a complete instructor to the most useful science of geometry and mensuration