1. From the standpoints of the complement fixation reaction and the tissue reaction it has been proven that the liver homologous immunicity can be accomplished in rabbit liver by injecting homologous liver emulsion into the animals without resorting to Freund's adjuvant method. 2. When the liver tissue is rapidly destroyed by injecting an hypertonic physiological saline solution into the liver, the production of liver auto-antibody can clearly be recognized, and the sensitized state with tissue reaction can also be observed. 3. In comparing the tissue reaction in the case sensitized with microsome fraction of homologous liver or homologous liver phosphatid antigen with the reaction observable in the liver injected with homologous liver emul...