WYCKOFF: They measured the SANDSTONE clouds over Washington, using Osiger eounters and balloons. |. EISENBUDs What is the percentage of recovery of these balloons? - KELLOGG: They had a project called MOSY DICK in the Air Force, original WOoBY DICK gear were rather expensive and they wanted to ent then back, so they pat $25.00 recovery prise of it. Out of all the ones which they know cane down in this country, they know some of thea went down in the ocean, but the one: know landed ia the country—~—they got every one back, KRAHISHs That wes the alr sampling achteved? Fow was the collet nade up? | KELLOGGs then about the anell particles in the air being the ¢ problen—what is the real distribution of particle | the suall range? It was wuggested that one could use like an electrostetic precipitator, as was developed t for aircraft use, Or, in this case, one has the tine t up there and use a thermo-diffuston separator—that on sven imagine using this to collect these very email « Departmort of Energy Hick "5 Office BRNUAWES MRO,