The building of each meant the creation of a city that would house from forty to eighty thousand people. The ground surface had to be prepared, hills leveled, valleys filled, trees uprooted, brush cleared away and roads built. Then began the construction of barracks for the men, officers’ and nurses’ quarters, hospitals, repair shops, and all the other buildings necessary for the varied activities of the camp, amounting to more than 1,400 separate structures in each cantonment. Sewage systems and steam heating and electric lighting plants were installed. An ample water supply, with plenty of shower baths, was provided, allowing fifty gallons per day per capita, which is eighty per cent more than the average allowance in European army camps. Every care was used to assure the purity of the water. When taken from rivers it was filtered and sterilized. The total cost of the thirty-two cantonments and camps was $179,607,497. Additions and betterments during the next six months added $22,000,000. Every camp had its garbage incinerator, coffee roasting plant, theater, repair shop and other buildings that added to the comfort and morale of the men and the efficiency of the camp’s work. Such care was taken in the sanitation of the training camps and in the assuring of a pure supply of water--sometimes making necessary the draining of surrounding areas--that the reports of the Surgeon-General showed the practical elimination of water-borne diseases among the troops in training. Almost as rapid as the work on the cantonments and camps was that which had to provide hospitals, flying fields with all their many buildings for varied uses, huge storehouses and port and terminal facilities. At half a dozen of the Atlantic Coast cities port terminals with warehouses and wharves had been completed or were nearing completion at the end of hostilities unprecedented in size and completeness of equipment in our own or any other country. One storage warehouse provided 3,800,000 feet of storage space and another, for ordnance supplies, had 4,000,000 square feet of space into which were fitted seventy-five miles of trackage and 9,000 lineal feet of wharf frontage.