A treatise of artillery [electronic resource] : Containing I. General constructions of brass and iron guns used by sea and land, and of their carriages. II. General constructions of mortars and howitzes, their beds and carriages. III. The dimensions of all other kinds of carriages used in the artillery. IV. The exercise of the regiment at home, and its service abroad in a siege or a battle. V. Its march and encampment; ammunition, stores, and horses. VI. Lastly, the necessary laboratory work. To which is prefixed, a theory of powder applied to fire-arms. For the use of the Royal Academy of Artillery. By John Muller, professor of artillery and fortification.