This manual is intended to prescribe the duties to be performed by the personnel manning antiaircraft machine guns, and to explain the mechanical action of the gun and the workings of related materiel so that antiaircraft machine-gun equipment.
"The extraordinary importance which the Gruson-Schumann Shielded Mountings have obtained in military science during the last five years has naturally somewhat diverted the public interest from the armoured turrets and batteries of the Gruson...
"The present text-book has been compiled with the object of presenting as clearly as possible the elementary principles of the course in Ordnance and Gunnery as taught at the Military Academy, and of so arranging it that it can be readily used for...