that on Eniwetok Island, H&N had to initiate rehabilitation on Parry in addition to aiding TG 7.2 in the clean-up and rehabilitation of Eniwetok. At this time H&N was in the process of establishing the camp-sites at Bikini Atoll (See Chapter I). Construction of the additional facilities on Parry Island was accomplished in the Summer and Fall of 1953 as time could be spared from the scientific program. Eniwetok Island construction was co~ ordinated with the priorities established by the using agencies, and in many cases construction schedules were made contingent upon help supplied by TG 7.2. Many prefabricated structures that had formerly been at Kwajalein were re-erected, using a large percentage of TG 7.2 labor. The paving of the airstrip and related items of work were correlated with air operations and were accomplished with a minimm of interruption to air traffic. Organizing the test structure construction phase of Operation CASTLE required a considerable amount of logistical planning because of the large area over which the construction activities were conducted. In order to use as few men as possible on Bikini Atoll and to avoid duplication of facilities, it was decided that all materials would be shipped through the Parry Island central warehousing and accounting facilities, and that only a limited warehousing activity would be set up at Eninman Island to handle construction in that area and to act as a redistribution point for materials destined for other sites in the Bikini Lagoon. One of the main construction problems involved in a program of this magnitude was that of scheduling materials to avoid delays in 104