in the cat amounts of manganese dioxide varying between 9.8 and 3.9 mg. of manganese and containing from 50,000,000,000 to 10,000,000,000 particles , if injected intravenously , permit recovery at the end of 1 hour of 90 per cent of the material in the lungs , liver , and spleen in the following proportions : lungs 47 per cent ;
C0065644
manganese dioxide
C0024706
manganese