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Indiana University Studies 



part of shale and 600 pounds of raw material per barrel of cement 

 burned. It will be seen that this figure is rather low as com- 

 pared with the figures given by engineers who have written on 

 the subject, but when it is taken into account that the deposits of 

 limestone are in a very favorable location for quarrying in this 

 district and that no calculations have been made on the cost of 

 bringing the materials together at a central plant, the figure 

 can be taken as a close approximation of the actual cost. 



The demand for cement is growing rapidly in this country 

 and as soon as cheaper methods of power production and cheaper 

 fuels are utilized the industry is sure to be a good paying venture. 

 The fact that the difference between cost of production and selling 

 price is so small is an added incentive to the development of better 

 methods and better machinery of production. 



