Abstract
1. γ-aminocrotonic acid injected intravenously into rabbits is immediately excreted into the urine from the blood. More than 60% of the injected acid, however, is not demonstrable. In addition, an increase in the amount of glycine which is considered to be the decomposition product of this acid by oxidation is not recognized.
2. Upon loading embryonating eggs with γ-aminocrotonic acid, the amount of glycine excretion into the allantoic fluid is increased.
3. Loading of γ-aminocrotonic acid gives an evident disturbance on the liver of chick embryos.
