38 , the feet as opposed to a greater surface, MR. HARRIS: I don't know whether you looked at the pathology, but did anybody make a note of possibly at what level there was fibroplastic proliferation beneath the surface on these individuals? It appears to me that a good index of the energy of the situation, and we assume here this is a 100 kilowatt average energy beta ray which is. doing most of the burning, from what I have seen of burns Alderson Reporting Company Washington, D. C. using strontium and various high energy beta rays, the level 10 of fibroplastic proliferation is sharply cut off with 11 strontium. 12 range of the electron from strontium. 13 something to look at if it was in these specimens. 14 That cutoff point agrees in general with the CDR. CRONKITE: So that this might be Essentially there is no detecting 15 a histologic change between three German octavos, depending 16 on what part o¥ the body you are at. 17 is very little detectable. 18 MR. HARRIS: Greater than 50 MU I am not thinking of the depth down 19 to which, but thecloseness to which you come. 20 with strontium what you find is the burn area, and below 21 the burn area is a very thin area of disturbed reparative 22 action that you will get fibroplastic proliferation up to 23 the depths frm this point, but below that point which is 24 slightly below the burn itself, you will not have it. ARC 25 total depth below the surface of Essentially The the skin appeared to be | o ~ io8 P ys ble Wistapla = ty 2 aeam gelate bas : te Thea ak 34