Weights

in military matters, are those in general use, except in artillery, where hundreds are made use of, each of 112lb. quarters, each of 28lb, and pounds, each of 16 ounces. Every officer should know the weight of the ordinary musquet, rifle, carbine, and musquetoon; the weight of ball carried by each, for proof and service; the weight of powder according to quality required for each gun, and for practice and service, as well as the range of each weapon. Artillery officers should know the weight of metal in iron and bra guns of every calibre: they should know the difference between the weight of metal in guns formerly and at present, and the reasons for the reduction of the weight of metal; they should know the length as well as weight of guns, and the weight of cannon ball, and the windage allowed for cannon shot; they should know the weight allowed for case, cannister, and grape shot; and the weight of powder in every case. They should know the weight of mortars of every dimension, and of the shells which they throw, and the powder nece ary for every elevation and use. The weight which horses and waggons can bear and draw on given kinds of roads. The burdens which boats, barges, and water craft can bear and carry on streams or rivers; and the expence of carriage by weight or measure in every situation. Military men should know the weight of men, horses, and every description of matter used or liable to be moved in service.