C . CORESERODEALee) 56. 0018933 L. R. Bunney and E. C. Freiling; "Recent Developments in the Study of Fractionation, II'; USNRDL Technica] Memorandum No. 81, 19 February 1958; CONFIDENTIAL-RD. 57. A. W. Goodrich; "A Rocket System for Sampling Particulate Matter Contained in Nuclear Clouds"; Cooper Development Corporation, Monrovia, California, 31 January 1959; UNCLASSIFIED. . 58. Private Communication, Dr. T. 59. " " 60. " " 61. » E Triffet, USNRDL. A. Schuert, USNRDL. » Dr. G. Cowan, LASL. C. W. Bastian, R. Robbiani and J. Hargrave; "X-Band Radar Determination of Nuclear Cloud Parameters"; U. S. Army Signal Research and Development Laboratory, Fort Monmouth, New Jersey, 13 October 1958; SECRET-RD., 62. L. R. Bunney, E. C. Freiling, L. D. McIsaac and E. H. Scadden; "Radiochemical Procedure for Individual Rare Earths"; Nucleonics 15, No. 2, 81-83 (1957). 63. L. EL Glendenin; "Determination of Strontium and Barium Activities In Fission"; Paper 236 in NNES, Div. IV, 9, 1460, edited by C. D. Coryell and N. Sugarman, McGraw-Hill Book Company, 1951. 64. E. J. Hoagland; ''Note on the Determination of Strontium as the Car- bonate''; Paper 237, Ibid. 65. J. B. Niday; "Radiochemical Procedure for Cesium"; UCRL-4377, p. 13, 10 August 1954, 66. J. Kleinberg (editor); "Collected Radiochemical Procedures"; LA-1721, Second edition, 18 August 1958. 67. L. Wish; "Quantitative Radiochemical Analysis by Ion Exchange; Anion Exchange Behaviour in Mixed Acid Solutions and Development of a Sequential Separation Scheme"; Anal. Chem, 31, 326 (1959). 68. E. Scadden; "Improved Molybdenum Separation Procedure"; Nucleonics 15, No. 4, 102 (1957).