-j7- Tatle &. Summary of the radioassay by lon-exchange analysis of liver tissue af reef fien fron Enibua Island, July 11, 19°7 Dowex 50 separation Practions in order (Counts made tn October Isotope 9.5% oxalic acta 5% ammonium citrate pH 3.5, b-m a/m d/a/g sample weight ash of elution 1957 wet Pe) 11,872 516 zn©5 6,187 269 "oH " C057 5,902 257 " "1 " Co 1,192 48 n " " C06) ag 21 pH 4.1, a-t mn54 128 5 pH 5.1, b-k sr9V 2 0 6 M HCl Mn 34 458 20 4 and 2.5 M HCl Co?’ 3,268 172 nom ws C038 485 21 "oe "oom" Coo? 756 33 zn©5 11,898 517 pd 3.5, 0,p and Dowex 1 sevaratton®* Fractions tn of elution order 3.305 M HCl * ash weight of sample ).38" grams. **These fractions contained considerable amounts of manganese, cobelt, and zinc, indicating an over- loading of the Dowex SO cationic resin.