Use of Eniwetok Island. During previous tests, headquarters for all services were on Eniwetok Island and all versonnel, quartered on land, were housed in quonset buildings on this islani. The ste:l quonset tyne structures have rapidly deteriorated until now very few are in usable condition. As a consequence, the present garrison occupation is scattered from practically one end of the island to the other, using remaining facilities. To use Eniwetok as in the previous tests, the first construction required would be to regroup the garrison, and erect new buildings in one limited area. This would be necessary in order to remove buildings unfit for continual use, and to make way for a reasonable arrangement of new facilities for a large increase of population. The advantage of doing so, in making “niwetok the base island would be proximity to the air field and minimum duplication of existing facilities. Also, new construction would be readily accessible to the permanent garrison for use and maintenance during roll-up. Use of Parry Island. Parry Island was used previously as the test con- trol point, and as discussed in basic criteria, would be so used in the future. This implies certain utilities and quarters; and assuming a partial occupa=~ tion of a base island other than kniwetok, then several advantages emerge in favor of making Parry Island the base for Laboratory personnel and fuctions. The headquarters building, with its laboratories, communication center, and office space would thus be near the test control room, and quarters of per-= sonnel would be adjacent to both. Only such repair or construction work need be immediately undertaken on uniwetok as is required to meet the garrison needs at that time. A construc- tion camp may be started at once on Parry Island and housing and other facilities that will ultimately be used by Laboratory personnel be erected for the III = 6