f the material available and that it also slowly eliminates some of the retained material little by little. The danger, of course, is due to the ionizina asrect of the heta and gamma particles. While even today the way by which these particles influence bodily or cellular changes, it is known that continuous exposure to sufficient quantities can produce bone cancer and tumors in How these effects are initiated by ionizing radiation deserves to be outlined brieflv, before considering long-term effects, 22 sae the case of cesium; and tumors and cancer in the case of iodine, ’ BALE $ Ma. a tumors and leukemia in the case of strontium; vdeo> Vet tiCOMPARESSigea A, greatly feared, desrite the fact that the body does not take up all of - concentrate in certain areas (hones, muscle) or organs (thyroid) are