BUILDING AND ORNAMENTAL STONES. 



493 



It will be noticed that there is a strong discrepancy in favor of sawn 

 over tool-dressed stone. 



Kind of stone. 



Oolite limestones, Indiana, tool dressed 



Oolite limestones, Indiana, sawnt 



Granite, Hallo well, Me., tool dressed X . 



Sandstones, Ohio, sawn$ 



Compact limestones, Indiana, sawn || .. 



Modulus of 

 rupture. 



1,477 

 2, 338 



1,754* 

 479 



2, 825 



Modulus of 

 elasticity. 



2, 679, 475 

 4, 889, 480 

 2, 511, 800 

 398, 234 

 6, 300, 000 



Crushing 

 strength. 



7,857 

 12, 675 



16,312 



* Average of twelve determinations, 

 t Average of fonr determinations. 

 \ Average of two determinations. 



$ Average of five determinations. 

 || Average of four determinations. 



