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Indiana University Studies 



was, according to Hopkins, greater than the amount present 

 in the soil treated with burned hme by an amount equivalent 

 to the amount of nitrogen present in 373^^ tons of farm manure. 

 Or, it represents the equivalent of more than 2 tons per acre per 

 year of farm manure. The analysis also showed that the amount 



The plant of the Bedford Stone Products Company at Oolitic, Ind. This is the 

 first plant erected in the stone belt for the purpose of crushing the waste stone for 

 fertilizing purposes. 



of organic matter present in the first case exceeded the amount 

 present in the second case in about the same ratio as the amount 

 of nitrogen. This alone should demonstrate that ground lime- 

 stone is the proper form of neutralizer, as well as being the form 

 provided by nature. 



