Pair of scarce items concerning the military use of the atomic bomb. Includes the book "Atomic Energy for Military Purposes - A General Account of the Scientific Research and Technical Development That Went Into the Making of Atomic Bombs' by Henry D. Smyth (Princeton: Princeton University Press), 1945. First edition in paperback, 264pp. 8vo., covers soiled and worn, contents very good. The theory and invention of the atomic bomb, originally released the same month the bomb was first used on Japan. WITH: an almost comical two-sided 4 x 2.5 in. card issued by the Government Printing Office to the military advising actions to be taken in the event of an air-burst of an atomic weapon. Suggestions and advice include: '...if you are not wounded or burned, you need not worry about radiation...[lingering radiation is] so small it is not a hazard. Disregard it...The war won't be over. Get back to work...' Two pieces.