their sum subtract the content of a cylinder, whose length is equal to that of the bore, and iU diameter equal to that of the calibre of the piece ; multiply the difference (if it be a brass gun) by 5-0833, (if an iron gun) by 4-2968, and the product will be the weight in ounces. Note ... The diameter of a circle, multiplied by a#39;8862, or the circumference multiplied by -2821, equals the side of a square of equal area. 8.
|Title||:||The Artillerists̓ Manual, and British Soldiers̓ Compendium|
|Author||:||Frederick Augustus Griffiths|