142 Proceedings of the Royal Society of Edinburgh. [S« 
List of 1000 Rocks 
1 Group. 
Si0 2 
Ti0 2 
P 2 0 6 
h 2 o. 
A1A- 
Fe 2 0, 
FeO. 
MgO. 
CaO. 
NajO. 
k 2 o. 
, j Total. 
Sp. Gr. 
1 54 
40-1 
30 
1*3 
•9 
15-5 
6'3 
7 3 
8-4 
12-4 
3-4 
1-7 
100-2 
■8 
1*4 
1-8 
182 
6-9 
4.4 
8'4 
13-8 
3-4 
■8 
99-7 
13 rock 
44-6 
1-0 -4 
| 1*4 
16-3 
5-7 
6-8 
91 
11-6 
2-5 -9 
100-4 
3-00 
•6 
±1-4 
± 
1-1 
±1-9 
± 
•9 
j ±6-9 
55 
b b 
b b a 
48-3 
1-2 
15-2 
5-7 
10-4 
4-6 
10-4 
21 
•9 
99-2 
3-01 
15-7 
16*6 
37 
8*4 
3-6 
1-6 
1 98 3 
•5 
18-1 
4-0 
8 - 7 
5-4 
103 
4-1 
1-4 
1 99-6 
46^6 
6 
8-4 
8-5 
5-3 
93 
3-0 
1-4 
j 998 
46-3 
31 
16-9 
14-7 
60 
3-7 
7'9 
■9 
1 99-4 
46-3 
46-2 
J 
3-0 
13-4 
18-3 
4.4 
6-5 
12-8 
7-1 
4.4 
7-0 
11-9 
10-0 
2-1 
31 
1-9 
100-9 
100-3 
(2-40) 
45’® 
153 
4-0 
9 3 
5-0 
30 
100-0 
2*84 
45-4 
4-9 
16-8 
15-7 
3-1 
10-2 
2-8 
1-4 
100-2 
44-1 
1-6 
•3 
1-7 
13-3 
9-1 
63 
5-7 
10*6 
5-6 
1-8 
100-3 
3 01 
439 
41 
•7 
•3 
1*6 
17'6 
16-2 
3 4 
4-0 
10-0 
10-1 
7 2 
51 
1 1 -6 
96 . 
2-9 
2-9 
•9 
15 
| 100-2 
‘ 3-54 
43-5 
43-1 
1-8 
•5 
■9 
1-5 
1-2 
•9 
18-1 
22-0 
15-2 
75 
3-5 
5-3 
7-6 , 
8*6 
3-5 
7-5 
13- 4 I 
14- 1 
11-9 
2-0 
3-0 
40 
1- 3 
•9 
2- 5 
100-2 
101-7 
100-8 
3*21 
43*0 
429 
1-3 
3-1 
14-0 
21-1 
3-7 
•3 . 
8*3 
9*1 
5-2 
12-1 
11-6 
3- 9 
4- 2 
1-3 
•7 
1000 
100-6 
390 
3-0 
1*3 
1-9 
21-0 
11-8 
4-7 
8-6 
9-5 
3-2 
7-4 
15-9 
11-3 
2-8 
39 
1-2 
1*6 
100-9 
997 
19 rocks 
44-7 
•9 
•3 ' 
1-5 
16-6 
7-0 
7-8 
5-3 
10-8 
3-6 
1*4 
1001 
3-12 
±1-6 
±2-1 
±1-5 
H 
±1-2 
±8-5 
(2-40) 
56 
b b a 
bbb 
47-7 
46-8 
46 8 
•2 
•9 
17-6 
17-6 
i-2 
16-8 
12*7 
6'0 
5-1 
100 
95 
1- 4 
2- 6 
•2 
99-5 
1000 
3 
180 
6-2 
8-8 
8-4 
10-2 
2-2 
■1 
101-0 
3 : io 
46-1 
1-6 
17-9 v 
•8 
13-7 
6-9 
8‘0 
4'7 
•7 
100-2 
45-7 
44-0 
42-3 
42-0 
41-1 
39 8 
•2 
■1 
e 
2-0 
1-9 
3- 6 
4- 8 
•8 
•9 
17*1 
16- 9 
12-6 
17- 6 
21-0 
20-7 
8'6 8-7 
15-5 5-2 
6-2 8'6 
4-8 9'2 
2-3 
5*9 
5-2 
8-0 
8-0 
9'6 
9 9 
8-4 
8-5 
14-7 
2-6 
5*2 
2-1 
•6 
1-0 
2-7 
2-8 
•6 
ioo-o 
100- 9 
101- 3 
100-6 
101-0 
2-97? 
2*9*7 
301 
396 
1-3 
•5 
17-0 
21-6 
6-6 
9'0 
9-3 
68 
7-3 
45 
13-5 
10-6 
12'6 
1-6 
3-8 
•5 
3-1 
2-6 
100-1 
100-1 
100-4 
318 
Classification of Igneous Rocks. 
143 
1907-8.] 
continued . 
N Jahrb., 1905, vol. i., p. 437. 
N Jahrb., 1903-4, supp. 18, p. 464. 
Ijolite. 
Basalt. 
Ambalike, Madagascar. 
Darmstatt. 
0. Silvestri, B.C.G. It., xix., p. 185, 1888. 
Q Jimrn ., 1890, p. 327 (Sylvester). 
N. Jahrb., 1904, vol. i„ p. 69. 
W. D. Matthew, Tr. N.Y. Ac. Sd xiv., p. 
214, 1895. 
234. ' 
L. Bicciardi, B.S.G. It., v, p. 58, 1886. 
N. Jahrb., 1905, vol. ii., p. 235. 
E. Scaritzer, Jb. Wim. G.B.A., ixxiv,, p. 718, 
1884. 
K. A. Lossen, Jb. Pr. G.L.A., vi., p. 213, 
1886. 
N. Jahrb., 1905, vol. ii., p. 55. 
N. Jahrb., 1905, vol. ii., p. 62. 
Not published. 
N. Jahrb., 1904, vol. ii., p. 91. 
N. Jahrb., 1902, vol. ii., p. 32. 
N. Jahrb., 1905, vol. i., p. 271. 
Eutley, p. 255. 
N. Jahrb., 1901, vol. ii., p. 388. 
N. Jahrb., 1904, vol. i., p. 69. 
N. Jahrb., 1905, vol. ii., p. 75. 
Basalt. 
Lava. 
Eclogite. 
Quartz diabase. 
Augite porphyrite. 
Basalt. 
Gabbro. 
Basalt. 
Labradorite porphyrite. 
Theralite. 
Eclogite. 
Hornbl. gabbro. 
Monchiquite. 
Limburgite. 
Felspar basalt. 
Basalt. 
Olivine nephelinite. 
Augite diorite. 
Nepheline basalt. 
Hawaii, average. 
Aiguilles Rouges. 
New Brunswick. 
Caucasus. 
Abyssinia. 
Arctic Ocean. 
Harz. 
Duppau. 
Oetz Valley. 
New Hampshire. 
Arkansas. 
Gensungen. 
Korkatch, Bohemia. 
Puy de Dome. 
Malinverno, Monzoni. 
Caroline Island. 
P. Jahrb., 1904, vol. i., p. 70. 
Merrill, p. 225. 
"■ H. Smythe, Jr. A.J.S., xlviii., p. 61, 
1894. 
N - Jahrb., 1904, vol. i., p. 69. 
Prestwich, i., p. 37 (reduced to 1000). 
Jahrb., 1901, vol. ii. p. 388. 
Whitman Cross, Table XII. 
^ Jahrb., 1902, ii., p. 67. 
W. Jahrb., 1904, vol. i., p. 68. 
Jahrb., 1890, vol. i„ p. 258. 
Eigel, T.M.P.M., xi., p. 98, 1890. 
W- Jahrb., 1903^1, suppl. 18, p. 464. 
Amphibolite. 
Gabbro. 
Quartz amphibolite. 
Basalt. 
Olivine tephrite. 
Nepheline basalt. 
Camptonite. 
Gabbro. 
Hornbl. gabbro. 
Teschenite. 
Nepheline basalt. 
Aiguilles Rouges. 
Albemarle Co. 
L. Wilmurt, N. York. 
Aiguilles Rouges. 
StafFa. 
Puy de Dome. 
Odenwald. 
Rennibuster, Orkney IsL 
Monzoni. 
Upper Italy. 
Cape Verde. 
Rhon. 
