TESTS OF ROAD-BUILDING ROCK 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 
] 
Westford Middlesex 
Granite 
13,980 
17 000 
8874 
do 
do 
West Auburn 
do 
do 
8875 
...do 
do 
16,250 
21,950 
5988 
Worcester 
Mica gneiss 
MICHIGAN. 
Monroe . 
Calcite . 
Monroe 
Presque Isle. 
Argillaceous dolomite. 
Limestone 
11,750 
10,300 
MINNESOTA. 
MISSOURI. 
Roehefort . 
West Line 
Sweeney . . 
Boone.. 
Cass.... 
Cooper. 
Limestone 
....do 
Argillaceous limestone. 
13,900 
16,690 
14,900 
NEW YORK. 
6457 
c) 
(i) 
Clinton 
18,500 
20,500 
34,450 
29,050 
6458 
do 
Pyroxene gneiss 
8011 
(i) 
Dutchess 
Dolomite . 
5544 
Camelo 
do 
do 
5872 
Erie 
16 700 
8577 
Gloversville 
Fulton 
Biotite gneiss 
14,585 
4157 
Alexandria Bay 
Jefferson 
do 
Granite 
21,600 
8833 
do 
...do 
26, 180 
8902 
.do 
do 
do 
14,150 
9129 
...do. 
do 
do 
14,390 
9130 
.do 
do 
17,600 
7437 
do 
do 
Granite 
27,200 
10236 
do 
do 
28, 130 
10042 
Orleans 
Sandstone 
29,000 
31,300 
22,200 
35, 240 
8012 
(i) 
Rockland 
Gabbroitic diabase ...... 
8013 
(i) 
do 
10191 
St. Lawrence 
Sullivan 
Sandstone 
11182 
Callicoon 
Feldspathic sandstone 
do 
22, 620 
11181 
Tusten 
do 
26,300 
16,200 
11199 
Yorktown 
Westchester 
Granite 
NEW HAMPSHIRE. 
9893 
Marlboro 
Cheshire 
Granite 
15, 615 
9894 
.. ..do 
do 
do 
15, 250 
10,830 
9895 
Fitzwilliam 
do 
do 
9946 
(i) 
do 
do 
26,100 
8872 
Hillsboro 
.. do 
15,050 
9010 
...do... 
do 
16,640 
9011 
do 
do 
do 
14, 870 
9012 
..do. . 
....do 
...do 
18,230 
9031 
Concord 
Merrimack 
....do 
Granite 
16,600 
9036 
.. do . 
...do 
13,420 
9037 
do 
do 
do 
13,900 
8870 
do 
do 
do 
15,100 
9994 
Allentown 
....do 
do 
18, 110 
1 
Exact locality not known. 
