WT-615 UNCLASSizc iED This document consists of 84 pages No. 249 of 265 copies, Series A Report to the Scientific Director NATURE, INTENSITY, AND DISTRIBUTION OF FALL-OUT FROM MIKE SHOT By W. E. W. R. B. Heidt, Jr., LCDR, USN A. Schuert W. Perkins L. Stetson U. S. Naval Radiological Defense Laboratory San Francisco, California April 1953 UNCLAS~—. 1 transmittal or the disclosure of its contents in any manner to an unauthorized person is prohibited. Mh, / ra $e hy