摘要:(1) The mercury content in the urines of cases of acute phenylmercuric acetate poisonings was found about 10∼15 times higher than that of the normal. (2) The urine of a patient of chronic poisoning by methyl mercuric thioacetamide contained mercury in a similar amount to that of normal. But in the blood and hair, the amount of mercury detected was about 3 and 40 times larger than normal respectively. (3) Among the mercury contents in the urine, blood and hair of cases of poisonings, that in the hair was found remarkably high even after medical treatment. (4) From these observations, the analysis of mercury contents in hair was found important in the case of chronic poisoning by organic mercurial compounds.