ie ws ag WS LY —_ In Table 2 the physical, biological, and effective half-lives of the main elements which are supposed to deposit in the human Lody are given together with the organs in which they tend to deposit. As is evident from this, these elements have a tendency to deposit in the bone, thyroid, kidney and liver. There may be some rare earths which heve not been detected yet. in these organs. If they exist, they will also deposit In the animal experiments, the Bikini ash nas given to the animals with the food and also by the hypodermic injection and then their autoradiograph was taken. The result is the same as that of Table 2. Especially, the deposit is found to be the largest in the bone. This is very important in connection with the problem of prognosis of the patients, The result up to March 26 of quantitative analysis making use of the radicactivity of these elements is shown in Table 3. (Kime Lab.) To ovr slight relief in this unfortunate accident, more than 50% of the redioectivity is found in the rare earths while the amount of Sr79 is only of the order of 0.02%. The radioactive elements are absorbed in various weys through the digestive orgen, respiratory orgen, skin, etc. The rate of atsorption of course depends on the elements end the chemical compounds which they form. | cee yt hdd Clinical Froblens: Nofocigtn Voce re. sie. TDS. Injury of petients of the Bikini accident has been caused by the radiation of the fellout in contrast to the etomic bomb injury eat Bircesnine and Necgesaki. In the former, the injury is ceused either by e irreciation of B- andY - reys of fission products lccaeted sutside or on whe surface of tne body or by the irradietion of sreciel organs such es the tone, thyroid, kicney, and liver in which the fission rroducts are cerpcsited oy means cf absorption tnroveh the resrireicry orzen, igestive orgen, Skin, ete. In the latter, the mein cause of the rediaticn) injury is the exposure tc the initiel nucleer radieticn thougn irnere mes be seme effects of tne incuced radiéticn fre ana cuisice of the teody. Thus tne charecteristic Ganger of 2 eshn lies in the fect inet tne Pissicn products cepcsit in sur irzens es the bene, chpreic, Hidn@, end liver; irrecieie when, ani i.rs fet, are aitfic lit te tzke cut cf whete orgens. Te undersicnd better the we Sheil first s¢s whet reacti foreci herren csorzet py ¢€ mich is é2 ing body ec. 2ot of we ét20n pie 23 free reci es like Hee ch é biclogic ris heppe folicrs 2 - le