Some Century of Progress exhibits of interest to chemists

SOME CENTURY OF PROGRESS EXHIBITS OF INTEREST TO CHEMISTS Burroughs Wellcome & Co. -- The chemistry of medicinal plants is portrayed and stages in the isolation of active principles shown. A parallel display shows how medicines are made from animal sources and metals. A number of crystals of chemical, commercial, and academic interest add attractiveness by their varied forms and coloring. E. I. du Pont de Nemours & Co. -- A comprehensive exhibit showing the development and progress in the manufacture of Pyralin and Lucite toiletware from 1893 to the present time constitutes a visual review of this

part of the pyroxylin industry. Merck & Co., Inc. -- Nine-foot prisms of plate glass, which typify the relative masses of chemicals that are used today in science and industry, form a part of the outside wall of the exhibit. In the presence of the onlookers a pharmacist demonstrates the art of his profession in the preparation of pills, the weighing of very small quantities of powders, the filling of capsules, and the preparation of other types of pharmaceutical products required in prescriptions.