TABLE 44. 

 STRENGTH OF MATERIALS. 



The strength of most materials varies so that the following figures serve only as a rough indication of the strength of a 



particular sample. 



TABLE 44 (a). -Metals. 



TABLE 44(1)). Stones.* 



* Authority of Wertheim. 



* Data furnished by the U. S. Geological Survey. 



TABLE 44 (d).- Concretes.* 



* Data furnished by the U. S. Geological Survey. 

 SMITHSONIAN TABLES. 



