=e ee An waht (Continued) i divide this by the area of the earth this number comes out 20,000 Strontium © atoms per square centimeter. If we say we we shot off say 1,000 bombs this would be per kiloton bom>, you get 20,000,000 Strontium 90's par square centimetar's at the moment. It happens that 15,000,000 give you 1 dpm ao the. present assay is 1 dpm per square centimeter. know from the rough overall yield figures. ‘That is all you That is how mch there is, in other werds the linited detectability is equal te one square centimeter for wiiform distribution at the moment. Tha homan tolerance is equat tc a million square certineters. That is the ingestion of the Strontium in an area of a million square centineters, that is 10 meters square - you swallow that much, you are up te human tolerance at the present time. I don't know that any other remarks at the praesent time would be particularly pertinent. Now, naturally these ars the hardest things to do ani? it will be easter to do Sichardson's, this can be done [ am quite certsin. DUE ARCHIVES 34