A treatise of artillery [electronic resource] : containing I. General constructions of brass and iron guns used by sea and land, and their carriages. II. General constructions of mortars and howitzes [sic], their beds and carriages. III. Dimensions of all carriages used in artillery. IV. Exercise of the regiment at home, and service abroad in a siege or battle. V. Its march and encampment, ammunition, stores, and horses. VI. Lastly, the necessary laboratory work for fire-ships, &c. To which is prefixed, an introduction, with a theory of powder applied to fire-arms. With large additions, alterations, and corrections, according to the second London edition. By John Muller, professor of artillery and fortification, and preceptor of engineering, &c. to His Royal Highness the late Duke of Gloucester.