The subjects covered herein have been taken wholly or in part from the various official handbooks, from “Ordnance and Gunnery, U. S. M. A.,” “Naval Gunnery, U. S. N. A.,” “America’s Munitions,” “Gun Making in the U. S. A.,” “Ordnance and Gunnery for Field Artillery Officers,” “Artillery Firing,” “The Field Artillery Journal,” Ordnance Doc. 2033, from lecture notes taken at the School of Fire, Brigade Training Pamphlets, and various other sources. The compiler is indebted to Lt. Col. Lloyd E. Jones, F. A. and Major H. C. Jackson, F. A. for the valuable advice and the helpful assistance they rendered in this compilation. CONTENTS. Page Chapters I. Definitions. 11 II. History and Development of Materiel. 16 Biblical references—Use by Romans in Punic wars—Greeks; Chinese use of pyrotechmy; French field artillery in the time of Charles VIII; Gustavus Adolphus and artillery in the 17th century; Louis XIV; Gribeauval’s work in 1765; Shrapnel, 1808; Smooth bores to rifles, middle of 19th century; French “75;” Period 1897 to date. III. Elements of Gun Design and Construction. 27 Guns—wire wrapped and built-up; twist; breechblocks; carriages; traversing mechanisms; elevating mechanisms; recoil systems. Air and spring recuperators; shields; sights; wheels; trails. IV. Modern Armament. 46 Discussions of types of artillery and their organization; missions and guns suitable to accomplish different missions; ideal and practical types for divisional corps and army artillery. V. Three-inch Field Gun. Weights and dimensions. 62 Description of gun, carriage, caisson and limbers; functioning of principal parts. Mounting and dismounting. VI. 75-mm Model 1897 (“French 75”). 84 Weights and dimensions. Description and functioning of principal parts. Care, preservation, dismounting. VII. 75-mm Model 1916 (“American 75”). 105 Weights and dimensions. Description and functioning of principal parts. Care, preservation, dismounting, mounting. VIII. 75-mm Model 1917 (“British 75”). 147 Weights and dimensions. Description and functioning of principal parts. IX. 4.7” Rifle Model 1906. 154 Weights and dimensions. Description and functioning of principal parts. X. 155-mm Rifle (Filloux Gun) (GPF). 160 Weights and dimensions. Description and functioning of principal parts. XI. 155-mm Howitzer Model 1918. 167 Weights and dimensions. Description and functioning of principal parts.