TABLE I. 
903 
1 . 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 
10. 
11. 
12. 
13. 
14. 
15. 
Si0 2 . 
55.83 
55.92 
56.28 
56.61 
57.17 
57.38 
58.05 
60.30 
61.22 
64.07 
64.27 
64.85 
65.11 
65.50 
65.60 
.930 
.932 
.938 
.943 
.953 
.956 
.967 
1.005 
1.020 
1.068 
1.071 
1.080 
1.085 
1.091 
1.093 
Ti0 2 . 
1.05 
.94 
.84 
.79 
1.03 
tr. 
1.05 
.76 
.61 
.45 
.32 
.91 
.71 
.45 
.75 
ai 2 o 3 . 
17.11 
17.70 
14.23 
13.62 
17.25 
16.86 
18.00 
16.31 
16.14 
15.82 
17.84 
16.57 
16.21 
14.94 
17.61 
.160 
.171 
.136 
.132 
.167 
.163 
.174 
.158 
.156 
.153 
.173 
.160 
.157 
.145 
.170 
f>A . 
.05 
Fe 2 0 3 . 
4.07 
3.16 
4.69 
5.89 
2.48 
2.49 
2.49 
4.35 
3.01 
3.40 
3.36 
2.10 
1.06 
1.72 
.95 
.025 
.019 
.029 
.036 
.015 
.015 
.015 
.027 
.018 
.021 
.021 
.013 
.006 
.010 
.006 
FeO. 
3.75 
4.48 
4.05 
2.60 
4.31 
5.17 
4.56 
1.41 
2.58 
1.44 
1.29 
2.15 
3.19 
2.27 
2.76 
.052 
.062 
.056 
.036 
.059 
.072 
.063 
.019 
.035 
.020 
.017 
.029 
.044 
.031 
.038 
MnO. 
none 
tr. 
.16 
.35 
none 
tr. 
none 
.13 
tr. 
tr. 
none 
none 
none 
.20 
none 
NiO 
.09 
.05 
CaO. 
7.40 
5.90 
7.94 
6.61 
6.61 
7.32 
6.17 
5.62 
5.46 
4.43 
3.42 
4.01 
3.97 
2.33 
3.72 
.132 
.105 
.141 
.117 
.117 
.130 
.110 
.100 
.097 
.079 
.061 
.071 
.070 
.041 
.066 
BaO . 
.15 
.13 
MgO. 
5.05 
4.34 
6.37 
5.48 
.4.83 
5.51 
3.55 
2.39 
4.21 
3.39 
2.00 
2.14 
2.57 
2.97 
1.49 
.126 
108 
.159 
.137 
.120 
.138 
.089 
. .059 
.105 
.084 
.050 
.053 
.064 
.074 
.037 
Li 2 0 
.09 
.01 
tr. 
.39 
none 
.03 
none 
.04 
.03 
Na^O . 
2.95 
4.08 
2.98 
3.13 
3.44 
3.33 
3.64 
3.99 
4.48 
4.06 
3.84 
3.71 
4.00 
5.46 
4.36 
.047 
.065 
.048 
.050 
.055 
.053 
.058 
, .064 
.072 
.065 
.061 
.059 
.064 
.088 
.070 
KjO . 
1.71 
2.28 
1.23 
2.71 
2.03 
1.45 
2.18 
’ 2.36 
1.87 
2.27 
2.48 
3.10 
2.51 
2.76 
.236 
.018 
.024 
.013 
.028 
.021 
.015 
.023 
I .025 
.019 
.024 
.026 
.032 
.026 
.029 
.025 
p 2 o 5 . 
.21 
.18 
.40 
.06 
.05 
tr. 
.17 
.20 
.25 
.18 
.16 
.14 
.02 
.09 
.16 
S0 3 
tr. 
tr. 
tr. 
(?) 
tr. 
.21 
.07 
.10 
tr. 
tr. 
tr. 
.06 
tr. 
FeS 2 
Cl. ... 
none 
.17 
' .17 
tr. 
none 
none 
none 
H 2 0. 
1.28 
1.42 
.93 
2.27 
1.20 
.42 
:86 
2.50 
.44 
.52 
1.32 
.35 
.94 
1.37 
.59 
100.40 
100.45 
100.28 
100.31 
100.40 
100.70 
100.79 
100.57 
100.36 
100.08 
100.33 
100.03 
100.33 
100.25 
100.38 
Less 0 for Cl.... 
.04 
.04 
100.24 
100.66 
16. 
17. 
18. 
19. 
20. 
65.66 
65.97 
66.05 
67.49 
67.54 
1.094 
1.099 
l.ioo 
1.125 
1.125 
1.37 
.42 
..34 
.13 
.80 
15.61 
16.53 
16.96 
16.18 
17.02 
.151 
.160 
! .164 
.157 
.165 
2.10 
2.59 
2.59 
1.30 
2.97 
.013 
.016 
; .016 
.008 
.018 
2.07 
1.72 
1.38 
1.22 
.34 
.028 
.024 
j .019 
.017 
.004 
, none 
none 
.08 
tr. 
3.64 
3.37 
3.37 
2.68 
2.94 
.065 
.060. 
: .060 
.048 
.053 
2.46 
2.11 
2.08 
1.34 
1.51 
.061 
.053 
.052 
.033 
.038 
.36 
.09 
njone 
.03 
3.65 
3.41 
4.20 
4.37 
4.62 
.058 
.055 
' .067 
.070 
.074 
2.03 
2.67 
2.53 
2.40 
2.28 
.021 
.028 
.026 
.025 
.024 
tr. 
tr. 
tr. 
.13 
tr. 
.13 
.13 
.03 
.26 
.12 
.09 
tr. 
.15 
1.07 
1.23 
.69 
2.69 
.55 
100.27 
.03 
100.33 
.02 
iob.22 
100.01 
101.01 
.03 
100.24 
100.31 
100.98 
21. 
22. 
23, 
24. 
25. 
26. 
27. 
69.24 
70.92 
71.85 
72.59 
74.70 
75.50 
75.52 
1.154 
1.182 
1.197 
1.209 
1.245 
1.259 
.65 
.43 
.52 
15.30 
13.24 
13.17 
13.47 
13.72 
13.25 
14.11 
.148 
.129 
.129 
.132 
.134 
.129 
.138 
1.72 
3.54 
2.17 
1.58 
1.01 
1.02 
1.74 
.010 
.022 
.013 
.009 
.006 
.006 
.011 
.69 
.66 
1.34 
1.32 
.62 
.91 
.08 
.009 
.009 
.018 
.018 
.009 
.012 
.001 
tr. 
.14 
.12 
tr. 
tr. 
2.98 
1.42 
2.25 
2.12 
.78 
.90 
.78 
.053 
.025 
.040 
.039 
.014 
.016 
.014 
.95 
.23 
.63 
1.05 
.14 
.07 
.10 
.024 
.006 
.016 
.026 
.003 
.002 
.002 
none 
.06 
4.46 
4.28 
4.06 
4.63 
3.90 
4.76 
3.92 
.071 
.069 
.065 
.074 
.062 
.077 
.063 
2.52 
4.25 
3.89 
2.52 
4.02 
2.85 
3.63 
.026 
.045 
.041 
.027 
.042 
.030 
.038 
tr. 
.18 
.14 
.27 
.26 
.40 
.32 
.11 
tr. 
1.30 
.57 
.43 
.18 
.62 
.41 
.39 
100.08 
99.59 
100.48 
100.24 
99.91 
100.05 
100.38 
