What Chemical Energy Can Do 



The crater, shown above, is not at the 

 summit of an extinct volcano. It is a pit 

 dug in a moment's time by the explosion 

 of a French mine, completely obliterating a 

 German trench. Below is shown the 

 bursting of a star-shell — a fair sample of 

 the costly illumination at the British 

 western front every night. Such pyro- 

 technics may appeal to the artistic eye of 

 the non-combatant but to the soldier they 

 mean but one thing — a night of terror 



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IJJJ Auicricuii PrcHtt A. 



'J 10 



