A Treatise Of Artillery: Containing I. General Contructions of brass and iron Guns used by Sea and Land, and of their Carriages. II. General Contructions … The Principles Of Mechanics. Explaining And Demonstrating The General Laws of Motion, The Laws Of Gravity, Motion Of Descending Bodies, Projectiles, Mechanic Powers, Pendulums, Centres … English gunmakers : the Birmingham and provincial gun trade in the 18th and 19th century / De Witt Bailey and Douglas A. Nie