CLARKE.] 
CARBONATE ROCKS. 
INDIANA. 
315 
A. Buff limestone, Hoosier Stone Company, Bedford. 
B. Blue limestone, same locality. 
Analyses by F. W. Clarke, record Nos. 300, 307. 
Si0 2 . 
FeA 
CaO. 
MgO. 
P 2 5 - 
C0 2 .. 
SO,.. 
.63 
.39 
54. 19 
.39 
trace 
44.01 
none 
99.61 
B. 
1.69 
.49 
54. 18 
.37 
trace 
43.08 
none 
99.81 
The following* Trenton limestones are all from the natural-gas belt: 
C. Union City. Depth, 1,160 feet. 
D. Bluffton. Depth, 1,062 to 1,067 feet. 
E. Muncie. Depth, 920 feet. 
F. Greensburg. Depth, 867 feet. 
G. Vernon. Depth, 905 feet. 
H. Wabash. Depth, about 900 feet. 
Analysis C by F. W. Clarke, record No. 738. The remainder by 
Charles Catlett, Nos. 753, 758. 
c. 
D. 
E. 
F. 
G. 
H. 
Insoluble 
2.14 
1.23 
83.21 
12. 48 
2.37 
4.48 
53. 43 
37. 47 
3.30 
3.72 
51.96 
38. 11 
.87 
.55 
94.60 
.36 
8.00 
.60 
85. 56 
trace 
3.52 
A1A, Fe,0, 
7.58 
CaCO, 
53.18 
MgC0 3 
30.53 
99.06 
97. 75 
97.09 
96.38 
94.16 
94.81 
