183 a the exterminators were ancerned 13 per cent of the body area. This is figures, but it will give you this idea ¢ roentgens. .012 As far as the roentgenographic changes are concerned, we found with the exception of anly 10 or 20 per cent of these people that if changes occurred in the long bones, in the radius of the tibia or fibula, it was almost always bilaterally. and another So taking one long bone one year this would minimize the radiation to this and give us basically clinical data farchanges which may occur three, Alderson Reporting Company Washington, D. C. 10 five, ten or fifteen years hence. 11 I have.a chart which I don't know whethe r you cm 12 see it cr not. 13 you some idea of the distribution of the tumors that 14 developed in these radium patients. 15 they are all dmmst at the ends of the long bones or 216 I just happen to have a chart. This gives You will notice that near the ends. 17 The roentgenographic changes occur either at the 18 ends or the middle, so by taking an x-ray of the joint and 19 probably two thirds of the tibia, this would give us a very 20 excellent base line study for our future changes which might 21 develop. 22 This would be very important fa@ 23 any autopsy material or any biopsy material that we might gt when these ARC 24 people were having operations that could correlate the 25 roentgenographic, radiographic and histopathologic changes. wd y ay weeuf /%°