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Indiana University Studies 



on it without difficulty. The overburden of rock at this quarry 

 is being removed by means of churn drills, explosives, and a 

 steam shovel, the only place in the stone district where such a 

 method is followed. In manj^ places where the two formations 

 are closely knit the explosives would tend to injure the underlying 

 stone; but in this quarry the effect on the underlying Oolitic 

 stone of the use of explosives in removing the Alitchell does not 

 appear to be serious. The waste removed is dumped into the 



Looking northeast in the P. INI. and B. quarry of the Indiana Quarries Company. 

 This ^-iew shows how the storage of the waste stone often interferes with the quarry 

 operations when the quarry is to be enlarged. 



old workings by means of a dinkey engine and dump cars. This 

 method solves the problem of waste disposal, but the waste could 

 not easily be recovered for use if it were ever to become of value. 

 Probabh^ there is no quarrj^ in the district where more waste 

 is to be seen piled about the openings, but some of this vast 

 amount of rock is at present being utilized for the manufacture of 

 lime by the Ohio and Western Lime Company, which has 4 

 kilns in operation in the old workings of the quarry. The waste 

 is turned over to the lime company at 15 cents per ton, the quarry 

 company furnishing derrick and switch connections for the lime 

 compan3^ Two churn drills and a 90-ton Bucyrus steam shovel 



