2. Another spray truck was used for Runit, Aomon, and Engebi, and for an occasional operation at Japtan. At these sites, semiweekly schedules were followed using the solutions mentioned above in connection with Parry Island. 3. During the period between July 1950 and May 1951 the entire Atoll was sprayed from the air, employing a L=-5 airplane equipped for this purpose. An oil=base insecticide containing 15 per cent DDT was used. This type of spraying was carried on on calm days with the airplane operating at an altitude between 75 and 100 feet. 4. The interiors of all mess halls were sprayed with a "D Part" vaporizing spray which contains no ingredient harmful to humans. Mess halls were sprayed a minimum of once weekly with pressure-type hand sprayers. 5. The ground around all buildings and tents was sprayed monthly with an insecticide solution of "L & C" spray to control ants and earwigs. 6, The interior of all tents and barracks at all camp locations were sprayed with both "L & C" spray and "D Part" spray on an average of once every two months. 7. All garbage racks were screened. All garbage cans were steancleaned and scrubbed after being emptied. All garbage was dumped at sea daily. 8, Beaches were inspected periodically and materials which would provide incubation breeding spots for flies were removed. 9. 10. All latrines were screened and sprayed regularly. During the roll-up period, all marine life washed up on the beaches after the detonations was removed and dumped at sea. 10-7