Coal Mining Machinery Has Increased Our 



Four cars of coal are unloaded every minute 

 on the rotary dump. The coal falls into a 

 conveyor which leads down the mountain to 

 the tipple house. There it passes over shaker 

 screens and is graded according to size 



At left: A modern mining machine for un- 

 dercutting coal. It is driven by electric cur- 

 rent and the teeth or picks travel on a chain 

 around the cutter bar. The first cut is al- 

 ways made at the level of the ground 



Press lUus. Serv. 



Mountain women come 

 to the mining camp to 

 trade their eggs, butter and 

 chickens for coal and other 

 merchandise. Traveling is 

 done on horseback and 

 with pack-mule since the 

 mountains are too 

 rugged for wagon roads 



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