below ground and partially above ground, with earth revetment on the zero side. By this type of construction it will be possible to salvage the power plant. The water distillation units, being of a portable tyne, can be removed before zero hour. The aluminum buildings can be readily dismantled and thus can be salvaged if it developes that personnel to dismantle these buildings will not be in the way of scientists at the time shortly before zero hour. Facilities in quarters. Consideration should be given to providing maxi- mum comfort, without luxury. This means a good bed, adequate clothing storage space, comfortable chairs, desks in required quarters, and day rooms so laid out and furnished that they are suitable for their purposes, dry closets for clothing and personal effects, chilled drinking water in all quarters and domestic type electric refrigerators in day rooms of scientists quarters. In providing these facilities, the governing thought is to supply as comfortable, well maintained housing as is practicable, which, when combined with a good mess and recreational facilities, will tend to keep the efficiency of the personnel, in all classifications, at top levels. Plumbing Materials. Separate systems for the distribution of salt water and for distilled water are contemplated. This will require separate connec=- tions between the main outside lines and certain inside fixtures. Water closets and urinal flush tanks will be connected to salt water service and wash bowls and shower heads to distilled water service. comion to both systems. Sewer drain lines will be No duplication of fixtures is involved bythis arrange- mente All plumbing fixtures located in buildings on Parry and Eniwetok should be of corrosio. resisting materials. It is contemplated to utilize vitreous china for lavatories, closet bowls, and urinals. Closet bowls and urinals will con- sequently be equipped with vitreous china tanks. Due to the use of sait water IV - 33