An easy Introduction to Practical Gunnery, or, the Art of Engineering. Containing, I. Decimal Arithmetic, Extraction of Roots. II. Mensuration of Planes and Solids, and the Computation of the Strength of Timber Joists, &c. III. The Computation of Balls and Shells. IV. The necessary Theorems in Geometry, demonstrated in a very plain and easy Way. V. The Nature and Use of Logarithms. VI. Plane Trigonometry in all its Cases; with the Method of taking Heights and Distances, and a one Station. VII. Gunnery, where the Cases are solved by Addition and Subtraction only, with numeral Examples, the Rules in Words at length, for those who are unacquainted with the Elements of the higher Geometry. VIII. The Theory of Projectiles. .

HOLLIDAY (Francis)