KELLOGs LARSER s Would you define the casiun? That ie practically all of the GI tract to the rabbit. The biologists object to calling it the GI tract. Now the Tigures Y an putting on the board are disintegrations mincte, per 100 milicraza of ash. VOICEs What was the initial date? LAKSENs It was Warch 4, I believe, Sinse we weren't such good itrg {chart should be used here) previous work hag ell been head shots, bu \ markanen in September '51, I couldn't sample lungs. If you are with a larger bomb and more activity drops down here activities are going to go up, but thay still hold that | general picture. If you plot the decay curves off say ff example}/the activity here and of this sample you would told or mentioned to ne as sbout 32 days.I have sone things that, if I may back up to what we were talking « this morning on particle sises. It applies to what we are observing here in the lung. We were able to deteraine onle few of our air sazplers this tine the actual particle sige en the air path. This was done by a tecimique that ve © was trhed to adapt to turbidimetric size adigsis on the actual mauhiene Qa\