458 MEDICAL JURISPRUDENCE in a solution of iodic acid or potassium iodide. 4. On heating and evaporat- ing with veratrine on a porcelain dish, a crimson deposit is obtained. Fig. 162,—Poisoning by a mixture of sulphuric and nitric acids: Stains on lips, right angle of mouth, chin and fingers due to corrosive action of these acidk Stains on Clothing.—The stained cloth should be soaked in alcohol and the tests applied to the alcoholic solution. Medico-Legal P^fete-^SuIphimc a^id Is largely used commercially iil several trades. Hence, H^s easily obtainable and may be taken for1 suicidal j purposes.