184 That is another point I would like to bring up of the technique which we used at Argonne of taking audio radiographs, and from this to use as a guide for the detailed ones. We were able to take whole sections of bone and from this take m-rays and also audio radiographs, then in the critical areas, and take biopsy material from this to study detailed audio radiographs in which we could simultaneously study radio element deposition and histopathological changes. Alderson Reporting Company Washington, D. C. 10 This was a simple and satisfactory method of study. 11 Since strontium is probably your biggest trouble from 12 long life, I would suspect that this would get a similar 13 distributim, and also a similar change. 14 important thing that this may answer is this: 15 from the radium study at what time these changes develop. 16 We have an idea it 17 but with the shotter half lived material, the calcium that 18 was gotten in here, these changes may develop earlier, and 19 the malignancies might develop earlier. 20 one step ahead of the game if we had this base line study. 21 I think it is a very important thing to incorporate ina I think another We don't know is five or ten years following deposition, But this would be study of this type. 23 ARC 24 25 DR. BOND: you wish to xeray? May I ask how many individuals woujd Would this be the entire group or childrey specifically? /%.