( continued) firat step was to got a basix understanding of the processes involved. te felt that we had to do this before we could go on to the next and real purpose of the project, was to predict what one would expect in the way of fallo over a wide range of conditions — that is, conditions of jburat, height, ;ield, and of stmospheric stability and husidity Taking up these factors more or leas in the order in whidh enter into the develepaent of the cloud, the first thing we wanted to look at was the way in which the cloud rose are soveral reasons for wanting to look into this early ap and describe what happens. The first thing which hap;ens, of course, for surface tw have a nixture of surface material with the radioactive dbbris, how close to the ground one can get and still not have scsvanging by sand, We have sove pretty good ideas now also interested in what would happen as the cloud rose, noticed, as I think everybody has notickd, that there is interhal circulation in ths cloud, causing a sort of a smd toroidal shape of the radioactive material, Denartment 2 | Linda 5 few “ Pat Cloud, and I'l give you of the We tried to ge results of this, We fh