Campsite hospital, snack bar, and canteen equipment had also been purchased and shipped during this quarter. Two film projectors and a screen had been provided for the theatres, plus a public address systen, portable record players, and radio receiving sets. Fire protection and miscellaneous safety equipment was also purchased during this period. Initial procurement for the various campsite shop facilities including the pipe, plumbing, carpenter, sheet metal, welding, and automotive repair shops were also completed at this time. The first large purchase orders for general building materials in anticipation of new building construction were placed, and stocks of reinforcing steel, structural grade lumber, masonite, plywood, hardwood, roofing paper, and galvanized nails had been secured. A contract for the fabrication of the first 300-foot tower had been awarded, with estimated delivery in December. The materials testing laboratory and necessary testing equipment was completely purchased and shipped. The original request for interisland communications equipment had been completed by securing four portable radio sets from military surplus stock at Pearl Harbor. Bids were awarded for 710,000 feet of submarine cable for inter-island com- munication with delivery estimated between seventeen and twenty-nine weeks. Additional surplus jeeps were procured from AEC Hanford Operations at Richland, Washington, and from the Navy at Pearl Harbor. As procurement for campsite facilities and operational headquarters was completed, the requirements for the Scientific Structures Program became more pressing, and large quantities of raw materials including limonite ores and steel scrap punchings for the foundation program were purchased and ghipped during the last months of the year. Permanent storage facilities of all types were ordered during this period for the original campsite facilities. These included warehousing facilities for all types of materials, food and provisions, petroleum, oil, and lubricants. The procurement of food supplies was a vital operation and one that continually increased in volume as additional personnel arrived at Jobsite. As the size of the camps increased, so did the requirements for all types of subsistence supplies, medical and dental equipment, drugs, and supplies, general PX supplies, kitchen and mess equipment, bakery and laundry equipment and supplies, and similar equipment and supplies required to satisfy the needs of enlarged personnel groups. The first indications of the great changes that were to be made in the original plans of the Atomic Energy Commission for developing the Proving Ground were evidenced during the last quarter of 1949. Pre- liminary cost estimates were requested for several additional facilities on various locations, and authorization for a general expansion of the original campsite facilities was granted in anticipation of later need. In addition, authorization was given to activate Japtan Island as a camp, laboratory, and animal breeding colony for the Bio-Medical Program. These changes required that the criginal plans for a small construction force capable of moving from one location to the next as construction needs were completed be revised to permit a larger construction force. 13-14