ne seenarto This latter matter is under intensive study and you wiil be asked to review our plans at an early date, 5, The design of several of the devices concerned is not yet firm and it is not possible to specify at the moment the exact amounts of nuclear materials to be expended, Prior to January 1, 1958, I shall submit to you an exact listing of the shots concerned, their individual objectives, and the amounts of nuclear material concerned, -~ 4 - Appendix "E"