Cost of all equipment, supplies and material purchased by the Armed Forces at the specific request of the AEC. Cost of modifications of material and equipment when such modifi- cations are made at the specific request of the AEC, except that modifications to ships and aircraft may be subject to mutual agreement as to the pro rata share of cost. Al) normal AEC administrative expense, including salaries, sub- sistence, per diem, etc., of personnel employed by the AEC and its contractors in connection with the AEC's projects and programs. Cost of expendable supplies furnished to the AEC and its contractors from military stocks. Packing, handling, and crating charges of Armed Forces material and equipment requested by the AEC. Operation of boats, tugs, and barges for loading or offloading supplies, materials, and equipment from ships at Pacific Proving Grounds. 10. Operation of all mess halls on all islands of the atoll, except Eniwetok Island and the JTF Commander's personal mess on Parry Island. Operation of land transportation facilities on all islands of the Pacific Proving Grounds except Eniwetok Island. 13. D. All costs of experimental projects of primary interest to the AEC except where jointly funded by mutual agreement. RESPONSIBILITIES AND COSTS TO BE ASSUMED BY THE DEPARTMENT OF DEFENSE 1. Cost of construction of facilities at Pacific Proving Grounds required exclusively for support of Armed Forces experimental projects. The costs of all equipment, materials, and supplies furnished by the Armed Forces except the costs of such items when they are purchased at the specific request of the AEC, and except the costs of expendable supplies furnished the AEC or its contractors from military stocks. Be Transportation of all personnel, equipment, and supplies between Continental U.S. and the Pacific Proving Grounds by militarily controlled transportation, except that the AEC will pay charges for packing, crating, and, except at Eniwetok Island, handling items intended for AEC use. Operations of all Armed Forces components assigned to the Joint Task Force. _All normal Armed Forces administrative expense, including pay, subsistence, and travel of all personnel, both civilian and military, employed by the Armed Forces with the exception that the K-II-, rong Operation of a boat pool for essential inter-island and ship-—toshore services.