asta f means, supplementary to thet cf subparagraph 1 a (4) ubove, of determining whether u porticulsr bomb devonated in a normal or abnormal memnncr. (2) The detormination cf the spectrum of fast neutrons as an aid to future bomb dosign. (3) The determination of the spectrum of high cnersy Fore. Pays. @. The Armed Ferces have indicated vequirements for cxzperi- mental cbhsurvations to determine the following: &. The choracter of the blast both at ground lovel. and at verisus clevations. bh. The effect of blest apon structurcs ccupesed of materials such as p.oinforced cenercte, and upun airplance in flight. & The éetaiied charncteristics cf tue radlonctive cloud ever on extended perind cof tine, ineluding fall-out and surface contamination. a, Metecrologicsl data te rorccast the movencnt and behavior of the radioastive cloud. e@. Rodietion dosages at various distances, and as 4 function of time. £. Nediation shiclding efficicneies of various neateriols, particularly reinforecd ccnenste. g The degree and durstion of contamiantion and the effectiveness of decontamination procedures. h. Incendiary offects basod on the intensity cf heat and on induecd surface winds. fh. Mothods for the long range detection of nuclear oxplesions. 3. To eonduct operations on thc minimum practictbl.s senile tu moct ti tentative requirements outlincd above and others which may be proposed, 1t is planncd: 5a Enelesuro "4"