By Tamagawa Hot-spring bathing, the agglutinin against B. coli communis increased together with occurrence of bathing dermatitis and production of autoantibodies against muscle Mb of bathed rabbits in simple hot spring. The urine which was excreated 1-3 days before the yield of eruptions and during the eruptions, reacted on the serum of same rabbits during the eruptions positively. These precipitation tests became positive between the urine and the serum which was taken at different times, only when the serum was taken later than the urine, while there was no positive reaction when the urine and the serum had been taken at the same time, or when the serum was taken before the urine. When rabbits immunized with B. coli communis were inoculated with the skin extract of the location of bathing dermatitis, the agglutination reaction against B. coli communis of the same rabbits increased together with production of the isoantihodies. From these results the outbreak of anamnestic reaction is considered to he due to the promoting action of the skin extract of bathing dermatitis on the place of antibody production.
According to Kuroda there exist two kinds of radioactive springs in Japan, namely radium- or radon-spring and thorium- or thoron-spring. The strongest thoron spring was found in Misasa, its thoron content being 70×10-9 curie units per liter. Using Warburg's apparatus, powdered monazite within it as a source of thoron, oxygen consumption of human erythrocytes proved to be suppressed by thoron under 1/2 of the control without monazite. The decrease in the oxygen consumption of erythrocytes by thoron returned to the control level after the removal of monazite from the side chamber and by refreshing the air in the gas space. Namely inhibition of blood cell respiration by thoron is reversible. After hemolysis of erythrocytes by adding distilled water, oxygen consumption decreased under 1/10 of the control and inhibition of respiration by thoron became no more proved. Concentration of thoron in the gas phase was estimated to be about 17×10-9 curie units per liter.