CLASTIC CONSTANTS OF ROCKS. 
Essexite, Mount Johnson, Province of Quebec, Canada. 
No 
a 
a 
a 
b 
C 
Size 
.975 X .992 
.975 X .992 
.975 X .992 
.9025 X .9825 
.971 X 1.007 
Area 
.966 
.966 
.966 
.886 
.978 
E 
9,580,000 
9,580,000 
9,580,000 
9,565,000 
10,430,000 
.2663 
.2663 
.2663 
.2363 
.2563 
> 
6,840,000 
6,840,000 
6,840,000 
6,060,000 
7,170,000 
c 
3,781,000 
3,781,000 
3781,000 
3,860,000 
4,160,000 
LONGITUDINAL COMPRESSION MULTIPLY READINGS BY 4 FOR MILLIONTHS. 
Load (in pounds). 
I OOO 

2 9 
60 
95 
131 
168 
200 
238 
270 
236 
2OO 
169 
135 
IOO 
68 
30 
i 
I 
30 
68 
IOO 
135 
169 
200 
240 
270 
235 
200 
170 
135 
IOO 
65 
30 
-4 
-4 
30 
63 
IOO 
133 
165 
196 
236 
266 
235 
2OO 
165 
I 3 2 
IOO 
66 
3i 
-5 
O 
30 
60 
IOO 
140 
1 80 
215 
260 
295 
260 
220 
185 
140 
no 
70 
25 
5 

28 
50 
9 
H5 
150 
1 80 
210 
245 
2IO 
1 80 
150 
H5 
90 
50 
28 
O 
2 OOO. 
1 OOO 
A OOO 
c OOO 
6 ooo 
7 OOO 
8,000 
9,000 
8,000 
7,000 
6,000 
5 ooo 
4 ooo 
3,000 
2 OOO 
I OOO 
LATERAL EXTENSION MILLIONTHS. 
No 
a 
6 
C 
Size . 
.975 
.9825 
.971 
Load (in pounds). 

I OOO 
O 
27 
35 
82 
no 
136 
161 
188 
225 
195 
172 
146 
118 
90 
49 
30 
o 

25 
45 
70 
95 
130 
150 
1 80 
220 
1 80 
155 
135 
IOO 
75 
45 
20 
5 

195 
3 
2,OOO 
T. ooo 
A OOO 
5 OOO 
6 ooo . . . . 
7, ooo 
8,000 . . 
9,000. . 
8,000 
7,000 
6 ooo 
5. OOO 
4., ooo. . 
3,000 
2,000 
I OOO 
