CLARKE.] 
IGNEOUS AND CRYSTALLINE ROCKS. 
31 
M. Amphibolite, Bernardston. A black, heav}^ massive hornblende 
rock. Analysis by L. G. Eakins, record No. 1 327. 
N. Porphyritie amphibolite, Heath. Analysis by Eakins, record 
No. 1325. 
O. Amphibolite, New Salem. Analysis by Eakins, record No. 1325. 
P. Amphibolite, Whitmans Ferry, Sunderland. Thin, shaly, apha- 
nitic. Analysis by Eakins, record No. 1325. 
M. 
N. 
O. 
P. 
Si0 2 .. 
51.72 
16.51 
1.72 
9.56 
6.58 
8.89 
2.74 
.34 
.51 
1.39 
.23 
51. 38 
18.01 
3.30 
8.53 
5.08 
6.27 
5.34 
.18 
.56 
1.07 
.18 
45.48 
19.43 
.13 
6.58 
11.08 
10.66 
2.28 
.11 
3.17 
. 77 
.14 
trace 
trace 
.01 
.20 
49.86 
15.50 
2.99 
8.01 
7.79 
8.89 
3.26 
.72 
1.51 
1.58 
.11 
A1 2 3 
Fe 2 0, 
FeO. 
MgO 
CaO 
Na 2 
K 2 
H 2 
Ti0 9 
P„0= 
( r 2 3 
MnO 
trace 
trace 
.19 
trace 
.07 
trace 
BaO 
C0 2 
100. 19 
100. 09 
100. 04 
100. 29 
