7 speed that would maintain the plankton net towline at an angle of 45°? with the surface of the water. For the subsequent drop of the water sampling bottles the starboard engine maintained rpm for speed of about 1 knot. After each drop the ship built up slowly to the 18-knot cruising speed to avoid unnecessarily great variations in boller brickwork temperatures. The WALTON reported to Eniwetok for refueling on Saturday, June 16, when approximately half of the survey had been accomplished. With additional fuel aboard, the cruise was resumed the game day. SEERrHMote THE SURVEY AREA Delineation of Area and Proposed Track: The area to be in- cluded in the survey and the projected track of the ship were determined at a meeting on June 9 in the offices of Captain H. @. Munson, USN, representative of the commander of Task Group 7.3. Those present at the meeting included Captain Munson; Commander N. Purley, naval liaison officer, CTG 7.1; Commander Arthur T. Emerson, Jr., captain of the WALTON; Mr. Merril Eisenbud of the HASL; Dr. A. V. Shelton, of ™ 7.1; and Lauren R. Donaldson and Allyn H. Seymour of T@ 7.1 (Program 35). Determinations of area and track were made after consideratlon of the elements of the problem, such as fallout patterns and estimated drifts of radioactive materials, and with knowledge of such operational factors as the overall time limit on the survey, the speed of the ship, and the need of the ship for a ane yk