Some Effects of Radium Radiations on White Mice. by Kanematsu Sugiura and Gioacchino Failla

I t is well known that radium rays, as well as x-rays, are capable of affecting the living cell. Bergoni~ and Tribondeau 1 from extensive experimental studies made the generalization 2,3 that: "Immature cells and cells in an active state of division are more sensitive to the x-rays than are cells which have already acquired their fixed adult, morphological or physiological characters. ''2 Subsequent observations have resulted in the extension of this generalization to the effect of radium radiations as well. For this reason the mice of the experiments described in the present paper were exposed to radium rays soon after birth and during the period of rapid growth.