But the Quartermasters Corps, while it was feeding and clothing the army, did not forget to be thrifty and it instituted and developed a remarkable system of conservation and reclamation that eliminated wastefulness and turned waste products into wealth. It reduced army waste of food stuffs, including bread, cooked meat and bones, to three-fifths of a pound per day per man, a figure much lower than the average waste of the civilian population in the cities of the United States. Every camp, both in the United States and overseas, had its repair shops where every article of clothing--hats, shoes, overcoats, stockings, leggins, breeches, coats, gloves--that could be made to give farther service was put into shape. In one month in the summer of 1918 more than a million articles of clothing and equipment were repaired. Fats were extracted from garbage, manure was sold, waste materials of various sorts were sold or turned over to one or another army organization that could find use for them. A school was established with a three months’ course at which several hundred men were constantly in training to take charge of the repair, dry cleaning and laundry shops of the army and of the prevention of waste in the handling of food in the camps and the reclamation of values from garbage and waste materials. Out of the importance of this work of reclamation and conservation came the formation of the Field Salvage Service. The members of this Service, after training at a school for this special work, were sent overseas to collect, classify and dispose of the wreckage of guns, shells, tools, all the implements of war that strew a battlefield after an engagement, and which, in former wars, would have been considered of no value. The Salvage Service also operated through all our lines, from the front trenches back through the training camps and lines of communication to every base port, collecting worn or damaged articles of every sort, and turning them to some kind of use. Even empty tin cans were collected and tin and solder salvaged. The Service had in active operation in France at the end of hostilities four depots, twenty shops and sixty-six laundries and disinfectors. Of all the items it received for renovation and repair it recovered 91 per cent. and utilized the remaining nine per cent. for raw material in repair work. The value of its work during the last month of war was estimated at over $12,300,000, or more than $4,000,000 per day.