The toxicity of some zirconium and thorium salts in rats.

I. The Toxicity of Some Zirconium and Thorium Salts in Rats. L. T. McClinton and Jack Schubert 1 II. The Potentiating Effect of Antihistaminic Drugs Upon the Sedative Action of Barbiturates. Charles A. Winter . 7 III. Studies on Hydrocarbon-Epinephrine Induced Ventricular Fibrillation. Solomon Garb and Maynard B. Chenoweth 12 IV. The Inhibition of the Cholinesterase of Rat Brain by Methadon. George S. Eadie, Frederick Bernheim and Dorothea B. Fitzgerald 19 V. The Estimation of Acetanilide and Its Metabolic Products, Aniline, NAcetyl p-Aminophenol and p-Aminophenol (Free and Total Conjugated) in Biological Fluids and Tissues. Bernard B. Brodie and Julius Axeirod 22 VI. The Fate of Acetanilide in Man. Bernard B. Brodie and Julius Axeirod ... 29 VII. Comparison of Ouabain with Strophanthidin-3-Acetate by Intravenous Injection in Man. Harry Gold, Walter Modell, Nathaniel T. Kwit, Samuel J. Shane, Conrado Dayrit, Milton L. Kramer, William Zahm and Harold L.Otto 39 VIII. Studies on Purified Digitalis Glycosides. VI. Thevetin, a Glycoside with Unusual Speed of Action in Man. Walter Modell, Nathaniel T. Kwit, Conrado Dayrit, Samuel J. Shane, William Zahm, Milton L. Kramer and Harry Gold 44 IX. A Study of the Pharmacological Relationship Between Digitoxin and Histamine. A. Sjoerdsma and E. Kun 53 X. Synergistic Effect of Chlorguanide and Sulfadiazine against Plasmodium gallinaceum in the Chick. Joseph Greenberg, Beverly L. Boyd and Edward S. Josephson 60 XI. A Study on the Comparative Toxic Effects of Citric Acid and Its Sodium Salts. Charles M. Gruber, Jr. and William A. Halbeisen 65 XII. An Ultraviolet Spectrophotometric Procedure for the Determination of Barbiturates. Leo R. Goldbaum 68 XIII. The Effect on the Pain Threshold of N-Acetyl p-Aminophenol, a Product Derived in the Body from Acetanilide. Frederick B. Flinn and Bernard B. Brodie 76 XIV. On the Mechanism of the Convulsant Action of Strychnine; the Lack of Atropine Antagonism. W. Clarke Wescoe and Ray E. Green 78