sD She instrucvcatation for the c-toni rltirier t each station was diuntical with the first recorder system with the exception of an 0-52 filter on channel 3 snia Germanium filter behind a 7-56 filter on channel 5, The first 11 inst.iusents were calorimeters andi the 12th instrument was a vaiiometer, Aiming point camsras were used to photograph the detonation. Sll of the instrmwisnts gave data and two of the four cameras, one at each station, functioned satisfactorily. RESULTS A preliainary analysis of the data in the field indicates that the energy received at the YVONNE station is low relative to the energy received at the WILMA station, ‘This reduction in energy was,no doubt, q que to the fact that the soil wag Teose eni could be stirred up by the 4, blast and thecal radiation, thus obscusiug thermal pulse, A more careful the latter portion of the cucr*nation 1a the Jiboratery of the -crey *stieeved as a Prsotion of cise will be retired in coter to wviive :ta 2 Tata, Sedtzed withcut the aid of precision instruments, cre as follovas 315,01 Total Ener 1.8 £ 0.3 cal/em* 815,01 Maximum Teraiiance 4.5 £ 0.7 cal/em* 815.01 Time of Max TIrradiance 0.19 seconds 812.02 Total Fne> 1.2 £ 0.2 cal/fem? 312,02 Maxtrom T sadiance 1.9 £ 0.3 cal/en®/see 412,02 Time to Max Irradiance 0.21 seconds ~ 61 -