Every Thing that is Useful and Curious in that Art, IS FULLY CONSIDERED AND EXPLAINED, PARTICULARLY THREE NEW AND VERY CONCISE METHODS FOR ONES HERETOFORE TREATED OF. The whole illustrated with Copper-plates. THE NINTH EDITION. BY ROBERT GIBSON, TEACHER OF THE MATHEMATICS. WITH ALTERATIONS AND AMENDMENTS, PHILADELPHIA: PRINTED BY JOSEPH CRUKSHANK 1808. |