Eczema Treated by X Rays

Cases of Leukæmia Treated by X-Rays

The beneficial effects of the X-rays in the treatment of leukaemia are now well known ; unfortunately, they do not seem to be permanent. Although a cure is not to be expected, very decided improvement results for a considerable time. Cases of myeloid leukaemia do best. The most striking effect of the X-rays is a rapid reduction of the number of white cells, especially of myelocytes, in the bloo...

Chemical Analysis by X-Rays

The Inactivation of Trypsin by X-rays

1. The inactivating effect of soft x-rays on trypsin in solutions of various degrees of concentration has been studied. 2. It has been found to run parallel with spontaneous heat inactivation. It is almost, if not entirely, confined to the free or active trypsin. 3. Under radiation of constant intensity, the inactivation follows the simple exponential law which indicates a monomolecular reactio...

Sensitization to Heat by X-rays

1. Paramecium caudatum is sensitized to heat by sublethal dosages of x-rays. Thus if paramecia are irradiated, then exposed to a sublethal dosage of heat they are killed, but if the same heat exposure precedes the same dosage of radiations, they are not. 2. Sensitivity to both heat and x-rays is much greater in paramecia from the log growth phase than in those from the stationary phase of a cul...

Treatment of Oriental Sore by X-Rays