er sanuary 1959, J-10 Report: This report notes tha t J-10 has been consul ted by the Air Force in connection with detection of atm Ospheric or exoatmospheric tests from a location between 20 and 50 earth radii ang that blackboard calculations have been , B Y - made tOo look at the method of USIi Ng B x-ray excited air f lourescence 29 January y 1959, : J-12 Report: It is noted here that , the feasib ibi ili lit t y study of a balloon pin i ex technique is goi ng on and that @ pinex tower has bee n flown in a horizonta l Position N & Meeting #1461, 30 January 59: eyes . aw ers which would Paul Foster presented a draft letter to the Commission currently in regard go to the Secretary of State with the AEC's position red in to the test ban talks at Geneva, a letter which had been prepa accordance with McCone's guidelines. Libby expressed concern over obtained in less the implication that additional seismic data could not be nuclear tests could be than one year but Starbird explained that , while two 94 aia carried out in 6 and 8 months respectively, the. evaluation of seismic data would require at least a year; evaluation of a high altitude detection shot would require even more time. The Commissioners then approved as revised a letter to Secretary Dulles. Note that around the beginning of 1959 there is a marked decrease in the frequency of discussinn of anything having to do with weapons developments, weapons testing, and to a certain extent the test ban discussions at Geneva.