376 The Antenca?i Geologist. December, liwo 
the relative number of atoms of each oxide (AZ — see table 
III.), and the relative number of atoms of each metal (MAZ — 
see table IV.). Finally all these values are reduced to the 
scale of one hundred in the last three tables. 
Table II. The relative number of molecules of each oxide. [Z. 
(za/i/) of Rosenbusch.] 
o ;jw o s i- 
SiOg 
6c in 51 
;.. . 
81.:^ 

— ^ 
80.38 
80.23 
- a 
;>•£ „• 
83.52 
1" 
h 
84.77 
"c 
u 
2- 
62.55 
- j: 
ocSS 
83.42 
89.93 
3 K-T 
97.25 
2'5 
ill 
36.58 
TiOo 
1.46 
2.27 
.71 
1.39 
3.01 
1.86 
2.05 
Al.,0, 
19.16 
18.87 
19.62 
18.99 
29.41 
14.72 
15.3;^ 
23.64 
J 8.03 
8.(13 
Fe,0, 
1.40 
.55 
3.U9 
.57 
.22 
4.83 
3.77 
.41 
1.63 
19.40 
FeO 
12.36 
12.40 
13.64 
11.03 
.85 
22.21 
16.33 
14.18 
5.86 
47.55 
MnO 
.28 
.73 
.11 
.27 
.87 
.62 
.46 
MgO 
16.55 
21.85 
11.45 
16.35 
2.57 
27.50 
7.02 
8.07 
8.15 
4,97 
CaO 
16.04 
16.16 
15.36 
16.59 
21.64 
13.53 
12,38 
7.14 
11.57 
2.82 
Na^O 
K,0 
4.68 
.68 
4.13 
.57 
4.45 
.59 
5.45 
.88 
7.23 
.50 
348 
.41 
5.21 
J. 52 
4 35 
.72 
7.40 
.49 
.69 
.11 
153.99 157.18 149.14 155.50 147.30 152.51 147.71 149.06 152.43 120.70 
Table ill. The relative mimber of atoms of each oxide. [AZ 
{atomzahl)\. 
c d 
.S.S 
6 
CO 
a CO 




* . 
2.S 

ij2 
■~X3 ■ 
ccoO 

.if. 
■^ ce" 
.2-* 
^2 
S'* 
t: as 
CC^ 
S CC "^ 
■- £-S 
CCDS 
fiS 
ocs 
(^t. 
t-S 
00^ 
ozg 
cy^Se 
t/;«i-io3 
SiOa 
247.95 242.82 254.73 : 
254.31 
196.68 255.84 
269.79 297.90 
109.74 
Al=03 
94.35 
98.10 
94.95 
147.05 
73. eo 
76.65 
118.20 
90.15 
40.15 
Fe.Os 
27.55 
42.73 
26.37 
3.02 
69.11 
53.25 
31.65 
19.87 
193.47 
MgO 
43.70 
22.90 
32.70 
5.14 
55.00 
14.04 
16.14 
16.30 
9.94 
CaO 
32.32 
30.72 
33.18 
43.28 
27.06 
24.76 
14.28 
23.14 
5.64 
Na,0 
12.39 
13.35 
16.. 35 
21.69 
10 44 
15.63 
13.05 
22.20 
2.07 
K2O 
1.71 
459.97 ■ 
1.77 
2.64 
460.92 
1.50 
1:23 
4.56 
2.16 
1.47 
.33 
452.39 
475.99 433.12 444.73 465.27 471.03 361.34 
Tal 
ble IV. 
The relative 
numbe 
r of atoms of 
each 
metal, 
|MAZ 
{metallatonizah I) ] . 
D 6 
•Si 
>Xicd 
i 
fig 
5Q2 
2'" 

a! . 
2.D . 
^ cm 
3 ce-* 
i 
ill 
Si,(Ti) 
82.65 
80.94 
84.91 
84.77 
65.56 
85.28 
89.93 
99.30 
36*"58 
Al 
37.74 
39.24 
37.98 
58.82 
29.44 
30.66 
47.28 
36.06 
16.06 
Fe,(Mi 
11)13.50 
19.82 
12.90 
1.40 
32.14 
24.74 
15.62 
9.12 
86.99 
Mg 
21.85 
11.45 
16.35 
2.57 
27.50 
7.02 
8.07 
8.15 
4.97 
Ca 
16.16 
15.36 
16.59 
21.64 
13.53 
12.38 
7.14 
11.57 
2.82 
Na 
8.26 
8.90 
10.90 
14.46 
6.96 
10.42 
8.70 
14.80 
1.38 
K 
1.14 
1.18 
1.76 
1.00 
.82 
3.04 
1.44 
.98 
.22 
181.30 176.89 181.39 184.66 175.95 173.54 178.18 179.98 149.02 
