Coal 



Millions of years before the advent of 

 man, Nature was preparing for his com- 

 fort. In the gray dawn of the world— 

 when gigantic saurians dragged their 

 ungainly bodies through thickets of 

 giant ferns, when mighty tempests beat 

 to earth trees as tall as cathedral spires, 

 when flying reptiles bigger than aero- 

 planes rushed screaming through the 

 air — She was laying the foundations of 

 our coal beds. 



But the coal that is in our mines today- 

 would be valueless without the power to get 

 it out. Without the power of explosives it 

 would have been impossible to produce, during 

 the past year, the six-hundred-million tons 

 that have played so vital a part in supplying 

 the needs of our armies. 



The Hercules Powder Company is one of the 

 largest producers of mining explosives in the 

 world. From its vast plants come a large pro- 

 portion of the dynamite used by the coal miners 

 of the country ; men who are bending every 

 effort to the patriotic task of supplying our 

 Nation with the coal it needs to carry on to 

 victory. 



SEI{CULES POWDER CO, 



Chicapro Pittsburg, Kan. Salt Lake City 



Denver Pittsburgh, Pa. San Francisco 



Hazleton, Pa. Memphis St. Louis 



Joplin New York Wilmington, Del. 



