all scales of diffusion and by thie I mean ve must take " (Continued) account the shears. account. shear. Colonel Folenan’s paper took shear None of the ambsequent models have attempted Gnte dnte consider “So, this must be teken into account and I think thing wrich must be taken inte acecunt in arder to get a able model is the initial eccnditicns. ‘We are sure that material is concentrated in a toroid, in a doughnut, not sphereoid or s cylinder, or any such models and I think must be considered in trying to estimate the hazards of nout. There ig not too much point in eaking too many calculati oa these admittedly inadequate modela, we do it simply to sep what the trend is and to see whether we are approaching what observations of rainout are available. I certainly wouldh't want to guess as to what the estixate of the hasards wo.ldbe, byFriday afterncon. That is all I have to say. Listen Dr. Rapp, is it possible fer us to say that if ve LULAJIANs a model, rake that ¢ straight line scavenging curve, = loose anything in view of the fact that we don't know dif so well? Why not go ahead and say 100% scavenging and sof have any of thie refinemsnt? Yes, we could do that. Wa could always have considered RAFra ecavenging, but if we were to try to get a more realistic and if thie minimum does actually exist this could zake a tremendous difference. ore2 tarcratl yt V5 srws © Renarey t we 5b