TESTS OF EOAD-BUILDIK"G ROCK tS 1916. 
17 
Table II. — Results of compression tests of rock complete to January 1, 1917. 
ARKANSAS. 
Serial 
No. 
Locality. 
County. 
Name. 
Crushing 
strength, 
pounds 
per 
square 
inch. 
9828 
21,980 
19 860 
6331 
Bald Knob 
White 
CONNECTICUT. 
9791 
1 
Oneco | Windham 
Biotite granite 
16, 635 
23, 290 
20,200 
11098 
do ! do 
do 
11099 
do do 
Gneissoid granite 
GEORGIA. 
10381 
10382 
10389 
10393 
Southeast side Kennesaw Moun- 
tain.. Cobb. 
Marietta, 4 miles southwest of do. 
Austell, f mile west do. 
Blackwell Station, 1 mile north of do. 
Feldspathic gneiss I 18, 500 
Biotite gneiss j 14, 000 
Granite gneiss j 12,890 
Hornblende gneiss 17, 350 
ILLINOIS. 
4422 
Embarras 
Thornton 
do 
Hillside 
Tunnell Hill 
ReevesviUe 
do 
Kankakee 
do 
do 
do 
do 
do 
do 
do 
do 
do 
Lehigh 
Kankakee 
Alton 
Brookville 
do 
Anna 
Joliet 
Coles 
Cook 
do 
do 
Johnson 
do 
do 
Kankakee 
do 
do 
do 
do 
do 
do 
do 
do 
Limestone 
17,300 
23,060 
16,880 
15 730 
5509 
Dolomite 
6053 
do 
8711 
4660 
Sandstone 
19,150 
25, 780 
28,400 
20,610 
17 710 
7509 
Argillaceous limestone 
7510 
do 
4764 
Dolomite 
5550 
do 
6088 
20 830 
6165 
Dolomite 
11,660 
6865 
do 
13,500 
25,850 
20,000 
7298 
Argillaceous dolomite 
7299 
do 
7300 
do 
19,800 
19,700 
7301 
do 
7302 
...do 
17,050 
16,700 
7871 
do 
10367 
. .do 
11 180 
4421 
15,100 
18, 640 
18, 180 
19,510 
8,130 
7422 
Ogle 
7423 
do 
do 
5549 
9827 
.. Will 
INDIANA. 
5534 
Logansport * 
Cass 
Decatur 
do 
Limestone 
20,350 
17, 960 
4658 
St. Paul... 
18,400 
20,510 
20,000 
19, 800 
25, 420 
4659 
do 
Westport 
St. Paul 
Huntington 
Mitchell 
Bedford...- 
do... 
Greencastle 
Osgood 
Wabash 
do 
do 
do 
Huntington 
Lawrence 
do 
do 
Putnam 
Ripley 
4690 
do 
5088 
11183 
Dolomite 
4197 
12,250 
6,900 
6,450 
16,000 
14, 470 
18,790 
5027 
5029 
do 
3368 
. .do 
5737 
do 
4657 
