2 nena has bliieee eeBae ce ee db oetcanaleAE Le planned that a cable recovery system using boats from the lagoon side of tne island will be used. Planning for the construction of the detector sample string now includes a main line cable, 1 in. thick, beginning at 200 yd from ground zero, then 1/2-in. cable will be spliced on the lein.; cable at the 2,500-yd station. Starting at 200 yd, at every 50 yd will be placed a 2-in. pipe extending at least 5 ft above ground level or nign-tide mark, as applicable. At each station a i-in. pig-tail cable made of plowsnare steel will be woven into tne main cable and extend witn some slack up to the top of the corresponding pipe. There will be a loop made in tne end of tne pig tail and this loop will be sus-~ pended from tue top of the pipe with a lignt steel hook. The pig vail will be woven into tne main cable pointing away from zero. Project 4.3 has been dropped from the program because of the addition of Project 2.6. PROGRAM 5 GAMMA-RAY MEASUREMENTS Plans are now being made to turn over Project 5.3 to Livermore, a group at tne Radiation Laboratory of the University of California at Berkeley. It has been proposed that this group finish designing and building the equipment necessary, for these measurements and carry out the measurements in tne field. Project 5.4a has had the number of land sampling stations reduced from 8 to 5, and Project 5.4b has had the number of land stations requiring Holmes and Narver construction reduced from 33 to 12. However, Holmes and Narver is being requested to provide labor to - 29 - ; 30