; 2 ~s , The fellowing 4a quoted from the schedules It should be emphasized that this is the first information available relative to this operation; therefore, the schedule should be considered as very preliminary and will probably change considerably before a final program is established. Some 12 devices of the Los Alamos Scientific Laboratory were listed in the test program, the largest being or I12 end the amallest of 7 Sixteen devices of the University of Califor nia Radietion Laboratory were included on the list, sevcral of these shots being dependent upon the results of Operation PILGRIM*; the largest was expected to produce a yield ofEE. the smallest a yield of : ow On 6 June 1957 another schedule conteining Very prelininary information" was issued. 4 posed program, This schedule revealed several chsnges to the pro~ Ten Los Alanos Scientific Laboratory devices were listed, “4 <7 res the largest with el:<1: and the smallest with wa ey - | these yield limits being similar to those of the 26 February schedule, ‘Seventeen devices of the niversity of California Radiation — Laboratory were under consideration, the larzest of epproxiretel; »~) . a WME: ee orounest or AD oi ro we yr y Ng — a > “ys * Tie designation Operation “TITHT' was chenged to Opercetion PLIMBRBOR, 5 announced in the third amendment (dated 71 den 27) to the Plannin; ireetive 3-56, 4950th Test Gp. (1), 21 “ov 56. in this history the two designations are used interchangeatly.

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