24 



BULLETIN 670, U. S. DEPARTMENT OF AGRICULTURE. 



Table II. — Results of C07npresswn tests of rod:, made prior to Jan. 1, 1916. 



ARKANSAS. 



Serial 

 No. 



Locality. 



County. 



Name. 



Crushing 

 strength, 



pounds per 

 square inch. 



6331 



Bald Knob 



White 





19 8G0 













CONNECTICUT. 



9791 Oneco. 



Windham. 



Biotite granite 



ILLINOIS. 



4422 



Embarras 



Coles 







5509 



Thornton 



Cook 





23,060 



6053 



do 



do 



do 



8711 



Hillside 



do 







4660 



Tunnel Hill 









7509 





do 







7510 



do 



do 



do 



28, 400 

 20, 610 

 17 710 



4764 









5550 



....do 



do 



do 



6088 



do 



do 





20' 830 

 11 660 



6165 



do 



do 





6865 



....do 



do 



do 



13 500 



7298 



do 



do 





25 850 



7299 



....do 



do 



do 



20,000 

 19,800 

 19, 700 



7300 



....do 



do 



do 



7301 



....do 



do 



do 



7302 



do 



do 





17,050 

 16,700 

 15, 100 



7871 





do 





4421 



Alton... 







7422 





Ogle 





18, 640 



7423 



.do 



do 



do 



18, 180 



5549 









19, 510 













INDIANA. 



Loganport . . 

 Greensburg . 



St. Paul 



Westport.... 



St. Paul 



do 



Mitchell 



Bedford 



do 



Greencastle . 



Osgood 



Wabash 



Cass 



Decatur... 



do 



do 



do 



do 



Lawrence . 



do 



do 



Putman... 



Ripley 



Wabash... 



Limestone 



Dolomite 



Limestone 



Dolomitic limestone . . 



do 



Limestone 



Argillaceous dolomite . 



Limestone 



do 



do 



do 



Dolomitic limestone . . 



IOWA. 



Cedar Rapids . 

 La Grande 



Linn 



Marshall . 



Dolomite limestone . 

 ....do 



KENTUCKY. 



Princeton . . , 

 Cedar Blufi. 

 Limestone . . 

 Carter 



Caldwell. 

 do.... 



Carter 



do.... 



Dolomitic limestone... 

 Argillaceous limestone 



Limestone 



Siliceous limestone 



