RESULTS OF PHYSICAL TESTS OF ROCK, 1916 AND 1917. 
25 
Table II. — Results of compression tests of rods, made jjrior to Jan. 1, 1916 — Contd. 
MAINE. 
Serial 
No. 
Locality. 
County. 
Name. 
Crushing 
strength, 
pounds per 
squareinch. 
7438 
Hancock 
Biotite granite 
18, 400 
8745 
Knox 
Granite 
20, 020 
8768 
St. George 
do 
....do 
do 
22, 800 
8709 
....do 
20,930 
18, 780 
8781 
St. George 
do 
do 
...do 
9805 
.do 
....do 
17, 150 
17,540 
9996 
....do 
....do 
9445 
.do 
21, 220 
10366 
....do 
do 
27, 050 
7439 
Frankford 
Waldo 
....do 
20, 000 
MARYLAND. 
5611 
Mount Savage Junc- 
tion. 
Frederick 
Allegany 
Siliceous limestone 
34, 930 
4884 
Frederick 
Limestone 
17,580 
5694 
Havre de Grace 
.do 
Harford 
Gneissoid granite 
34,410 
5695 
do 
20,090 
21, 070 
34, 380 
5696 
....do 
do 
5697 
do 
...do 
do 
do 
Amphibolite 
5698 
35,210 
22, 190 
5099 
do 
do 
do 
MASSACHUSETTS. 
Rockport.. 
do 
do 
do 
do 
Westfield . . 
Westford... 
do 
do 
West Auburn . 
0) 
C 1 ) 
C 1 ) 
Camelo 
Akron Junction . 
do 
Gloversville 
Alexandria Bay. 
do 
do 
do 
do 
do 
Essex 
do 
do 
....do 
do 
Hampden. 
Middlesex. 
....do 
....do 
Worcester. 
Biotite granite . 
do 
do 
do 
do 
Altered diabase . 
Granite 
do 
do 
Mica gneiss. 
Clinton... 
do.... 
Dutchess. 
do.... 
Erie 
do... 
Fulton... 
Jefferson . 
do.... 
do.... 
....do 
....do 
....do..... 
Rockland . 
....do 
Plagioclase gneiss . . 
Pyroxene gneiss... 
Dolomite 
do 
Cherty limestone. . . 
do 
Biotite gneiss 
Granite 
do 
do 
do 
Gneissoid granite.. 
Granite 
Gabbroitic diabase . 
Siliceous dolomite.. 
22,370 
23, 010 
22, 070 
21, 600 
23, S30 
32, 850 
13, 980 
17,000 
10, 250 
21, 950 
MICHIGAN. 
9593 
Calcite 
Presque Isle 
10, 300 
MINNESOTA. 
5524 
Stockton 
Winona . 
10,000 
MISSOURI. 
6375 
Rochefort 
Boone 
13,900 
14,900 
6377 
Sweeney 
Cooper.. 
NEW YORK. 
18,500 
20, 500 
34, 450 
29,050 
10, 700 
31.180 
14, 5S5 
21, 000 
26, 180 
14, 150 
14,390 
17,600 
27, 200 
31, 300 
22,200 
1 Exact locality not known. 
