36 



Wherever our inspectors were able to procure cash prices we 

 have figured the average cost of 100 pounds of calcium and magnes- 

 ium oxides for each product. The prices were based on carload lots 

 delivered in bags for cash. 



The lime compounds varied widely in composition, as might be 

 expected. Particularly is this true of the so-called agricultural limes 

 and the lime ashes. The ground limestone, marl and gypsum were 

 more constant in composition. The guarantees on all of the prod- 

 ucts have been, as a rule, well maintained, — many of the materials 

 having overrun their minimum guarantee by wide margins. 



No attempt will be made at this time to discuss the rational use 

 of lime. For information of this character see bulletin No. 137. 



