Station C, is of heavy concrete; the same method of handling the heavy . aggregate was used as described above. Five hours was the time for pouring the 38 CU. yds. h the walls and nof. The walls and roof of the blast building were poured on 26 February without incident. An old salvaged refrigeratorwas brought over from Ihiwetok on 27 February and placed near the Zero Tower generators for housing radar equipment. Power for operating the radar beacon is furnished by the Zero Tower generatorswhich were placed in operation 28 February. Construction of a tank shelter, approximately one mile from the Zero Tower, was started 1 March and finished Fridays 5 March. For this structure, 6 and 8 inch salvaged iron pipe, 18to 20 ft. long, was used to form a -retainingwall. Gamna Station A was the final structure of heavy concrete and was poured 3 March. Meanwhile,a mmber of Dr. Shon~ls A13Cgroup was preparing the slots of Gamma Stations B and C for final concrete pour necessary to imbed the instruments. This pour was made on 5 March. Thursday, 4 March, a crew of 12 ~“fmm Dr. Krause?s group arrived and began laying the nMin coax cable between the Timing Station and the Zero Tower. The ditch for this cable was opened to k depth of 24 inches with a motor grader. Directly behind the coax crew a Navy cable laying crew laid and spliced th RG18/U and 10 conductor cables, which also connect the Zero Tower and the Timing Station. The ditch was backfilled at a later date after all cables had been tested. The installationof inside utility power wiring and power generators for the Timing Station was completed 3 March and Dr. Grier~s HIT group 44 Section XVI . I “1