Abstract
Summary
1. In acute intoxication experiments with the liver poisons, phosphorus, hydrazine and carbon tetrachloride it was found that phosphorus intoxication almost eliminates the serum calcium rise normally produced by injection of parathyroid extract, hydrazine causes a less marked rise and carbon tetrachloride has no appreciable retarding effect. 2. Since the bone-marrow poison, benzol, causes no alteration in the blood calcium curve following injection of parathyroid extract, the action of phosphorus and hydrazine appears not to be through an injurious action on the bone cells.
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