Under the care of the Quartermasters Corps was developed the Motor Truck Service, which later became a separate Corps--the “Gas Hounds,” as it was called both in and out of the army. At the beginning of our participation in the war the Corps had only 3,000 trucks, most of them in bad condition after hard service on the Mexican border. During the nineteen months of war there were shipped to France 110,000 vehicles and 15,000 tons of spare parts, and in mid-summer of 1918 the Service had 2,700 officers and 77,000 men. The Motor Transport Corps became of the first importance as a means of transport of troops and supplies, both in the United States and overseas, but especially so in France. Its work in moving men, munitions and supplies to the front was of such great consequence that it deserves the credit of having been an important factor in the winning of the war. In order to assure the quantity production that was urgently needed designs were standardized and all branches of the automotive industry united for their manufacture in close coöperation. Training camps were established to provide officers and men for the operation and maintenance of the Service both in the United States and in France and training was given also at several immense base repair shops. The courses varied from two to eight weeks and 15,000 men were in training at one time. The American army was the best paid of all the armies of the contending nations. The private and the non-commissioned officer received from two to twenty-five times the pay of privates and non-commissioned officers in the British, French, Italian and German armies. Except for the grades of Lieutenant-General and General in the British forces, the pay of the American officers was also considerably greater than officers received in any of the other armies. The payroll amounted to $40,000,000 per month for every million of officers and men abroad, and was almost as much more for the forces at home. The rapid and tremendous expansion of the payroll, coming at the same time that the Quartermasters Corps was, by necessity, greatly expanding and reorganizing its personnel and was undertaking the huge tasks of providing food, clothing and equipment for the army, somewhat demoralized the system of payment for the first year of war effort. But an individual pay card system was devised which simplified the vexatious problem. The personnel of the Quartermasters Corps expanded from five hundred officers and 5,000 enlisted men to 9,000 officers, 150,000 enlisted men and 75,000 civilian employees, while the entire Corps was reorganized, several new divisions created and their work specialized, and finally, so enormous and varied were the tasks which came under its supervision that several of them were transferred to other offices of the War Department or new corps were developed to take charge of them. The total expenditures and obligations of the Quartermasters Corps for the war amounted to about $7,000,000,000.