1. Glycerol extracts of liver, spleen, and kidney contain an ereptic ferment capable of splitting peptone into amino-acids.
2. Poisoning by phosphorus appears to reduce the ereptic power of the liver, and to a less extent that of the kidneys.
3. Poisoning by chloroform appears to have no appreciable effect upon the ereptase content of the liver, spleen, or kidneys.
4. Feeding of sugar to normal animals has little or no effect upon the ereptic power of the liver, spleen, or kidneys.
5. Feeding of sugar before and after poisoning with phosphorus appears to prevent the reduction of ereptic power of the liver.