After this class of civilians had been graduated from the Springfield school, a number of training-camp candidates were instructed and were afterwards commissioned. When the full success of this school was realized, it was enlarged and expanded, and it instructed not only civilians and training-camp candidates, but also officers of the Ordnance Department, who were trained as armament officers, instructors, etc. Later the school was still further expanded to include a large class of enlisted men for duty as armorers. In all, over 500 officers were instructed at the Springfield school. When the war with Germany ceased, the graduates of the Springfield Armory machine gun school were found in almost every line of endeavor connected with arms, ammunition, and kindred subjects. Now, let us look at the first results of the early effort in machine-gun production. Within a month after the first drafted troops reached their cantonments we were able to ship 50 Colt guns from the Marlin-Rockwell Corporation to each National Army camp, these guns to be used exclusively for training our machine-gun units. Before another 30 days passed we had added to the machine-gun equipment of each camp 20 Lewis guns of the ground type, and 30 Chauchat automatic rifles which we bought from the French. (The Lewis ground gun was almost identical with the aircraft type, except that its barrel was surrounded by an aluminum heat radiator for cooling, a device not needed on the guns of airplanes because of the latter's shorter periods of fire.) Also, in the autumn of 1917 we were able to issue to each National Guard camp a training equipment consisting of 30 Colt machine guns, 30 Chauchat automatic rifles, and some 50 to 70 Lewis ground guns. At the beginning of 1918 our machine-gun manufacture was well under way. Such was the industrial situation at this time: the Savage Arms Corporation was producing Lewis aircraft machine guns of the flexible type; the Marlin-Rockwell Corporation was manufacturing large quantities of Marlin aircraft machine guns of the synchronizing type; the Colt's Patent Fire Arms Manufacturing Co. was building Vickers machine guns of the heavy, mobile type; and a number of great factories were tooling up at top speed for the immense production of Browning guns of all types soon to begin. Meanwhile we kept increasing our orders as rapidly as conditions warranted.