1. The glucuronic acid in blood, urine and tissue of the rabbits, followed by an experimental tuberculosis and treating with use of Streptomycin and Kanamycine, was measured. Comparing with the normal rabbits, the concentration of glucuronic acid in blood, the urinary excretion of glucuronic acid and the intrarenal or intrahepatic amount of glucuronic acid, in the rabbits of renal tuberculosis, tended to decrease. The urinary excretory amount of glucuronic acid decreased more remarkably in the treatment by Kanamycine than in the treatment by Streptomycin, however, this amount gradually increased in both cases when these treatments were interrupted.2. When the ureter of rabbit was ligated, the blood level of glucuronic acid markedly raised, but this rise was not so considerably 48 hours after. This experiment shows one style of the fact reported in a preceding paper which indicated the increase of glucuronic acid in blood in the urinary excretion disturbance such as a prostatic hypertrophy. The intrahepatic or intrarenal amount of glucuronic acid, 72hr after the ligation, was lower than that in normal state.3. In Brown-Pearce carcinoma of rabbits, the elevation of glucuronic acid concentration in blood, the increase of urinary excretion of glucuronic acid and the decrease of intrahepatic and intrarenal glucuronic acid were observed.These results can be summarized as follows. In the experimental renal tuberculosis, the glucuronic acid concentration in blood and the urinary excretion were decreased considerably. In the case of urinary excretory disorder due to the ureter ligation the significant elevation of the blood concentration of glucuronic acid was seen. In the experimental carcinoma, both the blood level and the urinary excretion of glucuronic acid were increased. In various diseases, the intrarenal or intrahepatic glucuronic acid were decreased. These clinical results of glucuronic acid metabolism in various diseases are similar to the experimental results. Moreover, the intrahepatic or intrarenal glucuronic acid amount in various diseases, except the renal tuberculosis, tends to shift reversely proportional to the blood level. Even in various urological diseases, it can be supposed that the conjngate metabolism of glucuronic acid is evidently remarkable and has the close relation to the hepatic and renal functions.