Suggested Photography by Transmitted Heat Rays

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...

Suggested by Our Readers

Suggested by Our Readers

Suggested by Our Readers

Logical constructions suggested by vision

I thank Jaap van der Does for numerous helpful conversations.