GROUND LIMESTONE AND GROUND SHELL LIME 



No deficiencies were found in this group of products, although the degree of 

 fineness to which some of them are ground deserves comment. The results shown 

 in the following graph, when compared with the actual cost of 100 pounds of 

 effective oxides, as given in Table II, emphasize the greater effectiveness of the 

 finer ground products, which apparently can be obtained with little or no addi- 

 tional cost over the more coarsely ground materials. 



For the season of 1924, about 16,640 tons of lime products were sold in Massa- 

 chusetts for application to the soil. This tonnage was about evenly divided 

 between raw ground limestone and the other forms of hme, not counting gypsum 

 or land plaster. It is probable that this tonnage would be every materially in- 

 creased by a substantial reduction in freight rates on this commodity. At present 

 about one-third of the delivery cost of these products is due to such charges. 



PHYSICAL ANALYSIS OF CARBONATES OF LIME. 



20 



40 



60 



80 



100 PERCENT 



XsJooooi 



i^^\^.x^^ ■(.. -All 



NEW EN9LAN0 

 LIME CO. 



GRANGERS MANUFACT- 

 URING CO. 



POWNAL LIME CO. 



CONNEaiCUT A6ST0NE 

 CO. INC. 



DONALD U. SMITH 



SUMMIT LIMESTONE 

 PRODUCTS CO. 



PRODUCERS 

 SALES CO. 



20 



I 

 40 



60 



80 



100 



000004 



??o6oo 



VERY FINE - PASSING 80 -MESH SIEVE. 

 FINE - PASSING 60, CAUGHT BY 80-MESH SIEVE. 

 MEDIUM - PASSING 40, CAUGHT BY 60-MESH SIEVE. 

 COARSE - PASSING 20, CAUGHT BY 40-MESH SIEVE. 

 VERY COARSE - CAUGHT BY 20-MESH SIEVE. 



