IX 15. "History of Task Group 7.4 in Operation HARDTACK, 1957-1958," in Hist. of the AFSWC, 1 July - 31 December 1958, 232-233¢ 16, Ibid, 17. Ibid,, 287. 18, Ibid., 30h-312, 19, Ibid., 361-362. 20, Review-Journal, Las Vegas, Nev., 31 Oct. 1958, in ibid., 38-386. 21. Ibid. 22, Interview with Mr. Moore, 9 Sep, 1961, 23. 24. Interview with Paul W. Guthals, J-l1, LASL, conducted by MSgt. Taylor, 12 Sep. 1961. _ Ibid., charts which show the sampling aircraft participation in HARDTACK together with the value of the samples collected are included, starting on page 79 of "Final Report, Operation HARDTACK, Task Group 7.4% which is maintained in the AFSWC Historical Office files, "HARDTACK®, Controlling of sampling aircraft during HARDTACK again required maximum resources, planning and skill, The details of controlling techniques applied are well. recorded starting on page 122, "Final Report" HARDTACK, Task Group 7.l;. 25, Interviews with Mr. Guthals and Mr. Moore. 26, Ibid, 27. bid. 28, Ibid. 197 AFWLHO SWEH -2-0034,