Experiments in applying various types of poison gases used in the war to the treatment of respiratory diseases; have multiplied. The use of chlorine as a preventive of influenza at the University of Arkansas has been described (TIME, April 14).
Now experts of the Chemical Warfare Service, experimenting at Edgewood Arsenal, near Baltimore, have had striking results with chlorine in very dilute quantities as a preventive of influenza, pneumonia and common colds. By accident it was discovered that workers in departments where chlorine was made were immune to these diseases, although elsewhere 10...