[Effect of generalized edema on blood flow distribution in the brain].

The correlation between increase in brain tissue pressure and cerebral blood flow distribution was studied in generalized brain edema induced by water intoxication in cats. Brain tissue pressure increased as the brain edema progressed. The intracranial vascular component was suggested to play a certain role in the volume buffering capacity at increased intracranial pressure.

Microbial life at 90 C: the sulfur bacteria of Boulder Spring.

The physiology of the bacteria living in Boulder Spring (Yellowstone National Park) at 90 to 93 C was studied with radioactive isotope techniques under conditions approximating natural ones. Cover slips were immersed in the spring; after a fairly even, dense coating of bacteria had developed, these cover slips were incubated with radioactive isotopes under various conditions and then counted in a gas flow or liquid scintillation counter. Uptake of labeled compounds was virtually completely inhibited by formaldehyde, hydrochloric acid, and mercuric bichloride, and inhibition was also found with streptomycin and sodium azide.