Photograph courtesy Division of Military Aeronautics 



INCENDIARY BULLETS, WHICH DESTROYED THIS OBSERVATION BAEEOON, WIEE HAVE 



NO TERRORS EOR THE AERONAUTS OF THE NEXT WAR (FOR THE 



FIRST PHASE OF THIS INCIDENT OF THE WAR IN THE 



AIR, SEE THE PRECEDING PAGE) 



At the time of the signing of the armistice, America was just entering upon quantity pro- 

 duction of helium. The first shipment to France of 150,000 cubic feet of the new balloon gas 

 had been made. Gas. fields already located in the United States are capable of producing, if 

 the necessity arises, 250,000,000 cubic feet of helium gas annually for the next three years, 

 and there are excellent prospects that other fields will be found. 



447 



