ELASTIC CONST ANTS otf ROCKS. 
Granite, Westerly, Rhode Island, U.S. A. 
No. .. 
a 
a 
b 
b 
C 
C 
d 
d 
d 
d 
Size . . 
1.008 X 1.002 
.981 X .929 
.... 
.975 
.975 

.... 
Area . 
1.01 
.91 
.... 
.75 
.75 
Side . . 
U. 
p. 
U. 
p. 
1st holes 
2d holes 
1st holes 
2d holes 
3d holes 
4th holes 
E 
7,180,000 
7,090,000 
7,625,000 
7,745,000 
7,670,000 
7,335,000 
7,575,000 
7,335,000 
7,170,000 
7,250,000 
cr . ... 
.21 
.1985 
.241 
.214 
.225 
.223 
.2225 
.222 
D 
4,110,000 
3,950,000 
4,925,000 
4,515,000 
4,600,000 
4,420,000 
2,980,000 
4,320,000 
4,340,000 
c 
2,970,000 
2,960,000 
3,070,000 
3,185,000 
3,090,000 
2,940,000 
2,961,000 
LONGITUDINAL COMPRESSION MULTIPLY READINGS BY 4 FOR MILLIONTHS. 
Load (in 
pounds) . 
Side 
U. 
Side 
P. 
Side 
U. 
Side 
P. 
O 
155 
1st holes 
2d holes 
1st holes 
2d holes 
3d holes 
4th holes 
I,OOO 
2,OOO 
3,000 
4,000 
5,000 
6,000 
7,000 
8,000 
9,000 
8,000 
7,000 
6,000 
5,000 
4,000 
3,000 
2,000 
1,000 

50 
95 
145 
1 80 
225 
265 
305 
345 
310 
270 
235 
200 
1 60 
no 
60 
5 

40 
80 
120 
1 60 
210 
260 
3 IO 
349 

50 
100 
150 
190 
235 
275 
315 
361 
320 
280 
240 
195 



O 

145 

144 
.... 

143 
145 
301 
302 
303 
310 
298 
355 
312 
460 
435 
455 
440 
455 
465 

300 
305 
305 
305 
157 

H5 
149 
1^0 
149 
3 


3 
10 
15 
12 
LATERAL EXTENSION MILLIONTHS. 
No .... 
a 
b 
d 
Size 
1.002 
.929 
.975 
Load (in pounds). 
I.OOO 
2,OOO 
3,000 
4,000 
5,000 
6,000 
7,000 
8,000 
9,000 
8,000 
7,000 
6,000 
5,ooo 
4,000 
3,000 
2,000 
1,000 
o 
25 
50 
75 
100 
130 
1 60 
190 
220 
195 
165 
I4O 
n5 
90 
60 
30 


30 
50 
85 
125 
177 

30 
80 
120 
175 
2O9 
177 
135 
100 
70 
30 
o 
20 9 
l6o 
130 
90 
45 
5 
