Dr. LAUSER’S COUGH DROPS.
Dr. Zernik found on analysis that these Cough Drops did not contain the ingredients alleged; there was for instance only 3·35 per cent. of alcohol, although the advertiser speaks of tinctures of 50 per cent. In addition to this small proportion of alcohol the mixture appeared to consist of a watery solution of liquorice, an infusion of senna root, some ammoniated solution of aniseed and small quantities of ammonium chloride.