TESTS OF ROAD-BUILDING BOCK IN 1916. 19 



Table II. — Results of compression tests of rock complete to Jan. 1, 1917 — Continued. 

 MASSACHUSETTS— Continued. 



Serial 

 No. 



Locality. 



County. 



Name. 



Crushing 

 strength, 

 pounds 



per 

 square 

 inch. 



8862 





Middlesex 



do 



Granite 



13,980 



8874 



do 



do 



17,000 



8875 



do... 



do 



do 



16, 250 



5988 





Worcester 



Mica gneiss 



21,950 











MICHIGAN. 



Monroe . 

 Calcite . 



Monroe 



Presque Isle. 



Argillaceous dolomite. 

 Limestone 



MINNESOTA. 



5524 Stockton. 



MISSOURI. 



Rochefort . 

 West Line 

 Sweeney . . 



Boone.. 



Cass 



Cooper. 



Limestone 



do 



Argillaceous limestone. 



NEW YORK. 



C 1 ) 



0) 



( l ) 



Camelo 



Akron Junction . 



Gloversville 



Alexandria Bay. 



do 



....do 



do 



do 



do 



do 



Albion 



G) 



C 1 ) 



Hopkinton 



Callicoon 



Tusten 



Yorktown 



Clinton 



do 



Dutchess 



do 



Erie 



Fulton 



Jefferson 



do 



do 



do 



....do 



do 



do 



Orleans 



Rockland 



do 



St. Lawrence. 



Sullivan 



....do 



Westchester... 



Plagioclase gneiss ..... 



Pyroxene gneiss 



Dolomite 



do .... 



Cherty limestone 



Biotite gneiss 



Granite 



do 



do 



do 



Gneissoid granite 



Granite 



Biotite granite 



Sandstone 



Gabbroitic diabase 



Siliceous dolomite 



Sandstone 



Feldspathic sandstone . 



do 



Granite 



NEW HAMPSHIRE. 



9893 



Marlboro 



Cheshire 



Granite 



15, 615 



9894 



......do 



do 



do 



15, 250 



9895 



Fitzwilliam 



do 



do 



10, 830 



9946 



(i) 



do 



do 



20,100 



8872 



Melford 





do 



15, 050 



9010 



do 



do 





16,640 



9011 



do 



do 



.. .do 



14, 870 



9012 



.....do 



do 



do 



18,230 



9031 





Merrimack 



do 





16,600 



9036 



do 





13,420 

 13,900 



9037 



do 



do 



:^:::d ::::::::: :"':: 



8870 



do 



do 



do 



15,100 



9994 



Allentown 



do 



do 



18,110 













Exact locality not known. 



