SECRET { “9- served on the delegation together with numerous technical experts from the Atomic Energy Commission and the Department of Defense. Subsequent to the summer meeting, Dr. Bacher of the Committee served as Deputy Head of the U. S. delegation to the Conference on Nuclear Test Suspension in Geneva which began on Cctober 31, 1958. 23. Hardtack II Data and Panel of Seismologiats Following a preliminary analysis by AFOAT-1 of seismic data of the Hardtack II series, which indicated that the conclusions on under ground testa in the report of the Geneva Conference of Experts had to be substantially revised, the Special Assistant recommended that the Department of Defense establish a panel of senior seismologists to report on the Hardtack II data. On January 5, 1959, the FSAC issued a statement through the White House based on the conclusions of the Panel of Seismologists. 24. Panel on Seismic Improvement and Panel on High Altitude Detection At the request of the State Department, the Special Assistant to the President appointed a Panel on Seismic Improvement to explore ways to reestablish the capability of the Geneva system and a Panel on High Altitude Detection to review the feasibility of conducting and detecting tests at great distances from the earth. former The/Panel, chaired by Dr. Berkner, included 13 other experts in the field of seismology and other basic sciences. A preliminary report of the Panel on Seismic Improvement was submitted on January 7, 1959. On March 6, 1959, the Panel issued a special report on the problem of concealment of underground explosions. The Panel submitted a report dated March 31, 1959, on the need for fundamental research in seismology covering a large numberof lines of research that could lead to improvements in seismic detection. The final report of the Panel on Seismic Improvement, dated March 16, 1959, was forwarded by the Special Assistant to the interested agencies on March 17, 1959. ‘ The Fanel submitted a At its meeting on March 16-17, 1959, the PSAC considered the final reports of the Panels on Seismic Improvement and High Altitude Detection. It endorsed continuing studies and experiments on a reason- able scale and noted the conclusions of the Panels that attempts to conceal ane We Uduillouadsd The Panel on High Altitude Detection was chaired by Dr. Fanofsky and included 12 other scientists and engineers. comprehensive report on March 16, 1959. Ree 2 UNE DL el U wHDUIMU SECRET Meer a sawed aban md. " tek ae TTere ne ee

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