140 Proceedings of the Royal Society of Edinburgh. [Sess. 
List of 1000 Rocks 
Group. 
Si0 2 . 
Ti0 2 . 
PA- 
HA 
A1A 
Fe 2 0 3 . 
FeO. 
MgO. 
CaO. 
NaA 
K.O 
Total. 
Sp. Gr.| 
129 
2-9 
71 
10-9 
1-0 
■4 
100-3 
100 
149 
17-6 
8-6 
13 
4*7 
100-0 
2-90 
9-7 
13-0 
8-0 
13*1 
■2 
997 
3-36 
8-8 
8-4 
95 
10-8 
2-4 
2*1 
998 
35-0 
5’2 
1*3 
10-8 
1-4 
21-3 
19-3 
■4 
■2 
5-4 
100-3 
3-28 
8 looks 
42-2 
2-1 
2-3 
132 
84 11-2 
10*1 
7-4 
1-7 11 
§9*7 
313 
±30 
±23 
±4-8 
±2-2 
±1-6 
±13-9 
(2-56) 
53 
i b a 
b a a 
51*5 
U 
■2-1 
14-0 
2-7 
8-9 
7-6 
10-5 
J 
7 
101-1 
•9 
1-9 
4*4 
61 
11-6 
39 
1 100-8 
50 3 
1-6 
•2 
•3 
15-2 
2-8 
11*3 
5-8 
9-6 
29 
1-0 
101-1 
2-97 
49-6 
1*3 
11*9 
2’6 
92 
8-0 
12-8 
1-1 
36 
100-1 
2-88 
49-2 
11 
2-2 
14-4 
4-5 
4-6 
8-2 
10-2 
4-5 
•4 
99-4 
49-2 
•2 
•4 
•9 
150 
1-4 
9-0 
8-0 
13’6 
1-1 
1-5 
100-4 
49-0 
30 
140 
12 
0 
6-0 
10-0 
4-0 
2-0 
100-0 
2-98 
48-4 
3 0 
13-4 
92 
4-6 
4-3 
3-2 
1-0 
100-3 
48-0 
3-0 
16-8 
4-3 
4-2 
9-1 
133 
1-2 
•3 
100-2 
47*0 
•1 
4 9 
171 
1-9 
7-0 
83 
12-2 
2-5 
■5 
101-4 
3-20 
46 '9 
2-0 
13-4 
9-8 
2-7 
4-3 
14-7 
4-6 
20 
. 100-4 
45-6 
1'3 
•9 
3-9 
130 
5-0 
4-8 
8-4 
11-3 
4-5 
1-0 
99 9 
44-1 
1*4 
6-8 
140 
91 
4*4 
4-9 
11-6 
3-3 
11 
100-6 
439 
1-8 
' x 
34 
17-6 
40 
39 
8-2 
13*1 
2-8 
1-3 
100-1 
43-8 
3 6 
31 
12-8 
90 
5-1 
2-4 
13-6 
3-6 
2-9 
99-8 
2-86 
4-0 
10 
11-5 
63 
80 
7 9 
140 
2-3 
1-5 
100-2 
42-0 
3 7 
•6 
11 
13-6 
7-6 
7-1 
6-4 
14-2 
1-9 
10 
99-2 
40-6 
3-1 
1-6 
66 
130 
4-7 
5-2 
136 
3 0 
2*2 
100-3 
2-86 
40-2 
4-7 
1-1 
3 4 
12-1 
7-0 
6-9 
6-6 
13-3 
3 6 
T6 
100-7 
2-92 
19 rocks 
46-5 
1*6 
•3 
2-6 
14-0 
5-4 
6-3 
66 
12-4 
30 
1-5 
100-3 
2-95 
± 
i-4 
±1-2 
' ±1 
L-8 
' ±1 
1-8 
± 
10 
±7-2 
54 
b b a 
b a b 
48-6 
1*7 
15-9 
2-5 
63 
11-5 
11*7 
2-0 
100-2 
47-5 
2-8 
•9 
16-7 
6-7 
6-9 
6-4 
8-7 
2-8 
1-1 
100-5 
473 
•9 
15-2 
1-2 
10-7 
99 
11-3 
30 
99-6 
47-1 
1-2 
•9 
160 
40 
99 
49 
133 
2-0 
100-4 
46-7 
1-7 
11-3 
10-4 
11-6 
1-8 
•2 
101-5 
462 
1-6 
13-4 
8*2 
7-0 
73 
12*3 
30 
•6 
999 
3*01 
45-1 
2-2 
181 
12-9 
7*3 
11-2 
21 
1-0 
100-0 
44-2 
1-5 
2-5 
14-7 
68 
4-8 
9-5 
10-4 
3-0 
1-8 
99-2 
2-90? 
427 
2-5 
18-4 
5-3 
7-0 
12-9 
10-1 
1-7 
*5 
101-0 
42-2 
1-9 
•9 
. io 
17-4 
5-9 
11-0 
12-6 
1*1 
•9 
101-5 
42-0 
1-9 
•1 
3-2 
13-9 
5-8 
62 
10-4 
11-4 
3 6 
■9 
101-3 
3 03 
1907-8.] Classification of Igneous Rocks. 141 
— continued. . . 
H. Jakrb., 1902, vol. ii., p. 37.. 
Q. Jaum., 1897, V- 484. 
Q. Jowrn.j 1894, p. 653. 
Wliitman Cross, p. 171. 
M. Koch, Z.O.G.B., xli., p. 165, 1889. 
Basalt. 
Basalt. 
Gabbro, dark banded. 
Hornblendite. 
Biotite peridotite. 
Seigertshausen. 
Franz Joseph’s Land. 
Isle of Skye. 
Gran, Norway. 
Harz. 
N. Jahrb., 1901, vol. i., p. 245. 
N. Jahrb., 1904, vol. i., p. 46. 
N. Jahrb., 1901, vol. i., p. 245. 
L. Ricciardi, Att. Soc. Ital. Mil., xxviu., p. 130, 
1885. 
N. Jahrb., 1904, vol. i., p. 46. 
C. Klein, Sb. Berl. Acacl, 1888, p. 111. 
A. Geikie, p. 149. 
N. Jalirb., 1905, vol. ii., p. 57. 
iV. Jahrb., 1892, vol. i., p. 325. 
F. L. Ransome, B. Dep. G. Un. Cal., i., p. 231, 
1894. 
W. G. Day, 19, A.R.U.S.G.S., vi., p. 222, 1898. 
Whitman Cross, Table XII. 
N. Jahrb., 1905-6, supp., p. 311. 
N. Jahrb., 1904, ii., p. 91. 
K. Gross, Mt. Bad. G.L.A., iv., p. 126, 1901. 
W. 0. Brogger, Q.J.G.S. , 1., p. 19, 1894. 
iV. Jahrb., 1893, vol. ii., p. 347. 
N. Jahrb., 1905, vol. i., p. 271. 
N. Jahrb., 1904, vol. i., p. 275. 
Glassy trap (edge of dyke). 
Diabase. 
Trap. 
Basalt. 
Diabase. 
Leucite basanite. 
Basalt, rough, average. 
Spilite (diabase). 
Gabbro diorite. 
Fourchite. 
Diabase. 
Analcite basalt. 
Diabase, surface. 
Hauyne monchiquite 
(heptorite.) 
Leucite basanite. 
01. gabbro diabase. 
Fourchite. 
Nephelinite. 
Hauynophyre. 
Rocky Hill. 
Kolilhau. 
Rocky Hill. 
Italy. 
Tharandt. 
L. Bolsena, Italy. 
Bohemia. 
Quinesec. 
California. 
Pennsylvania. 
The Basin, Color. 
Niederschelde. 
Siebengebirge. 
Kaiserstulil. 
Gran, Norway. 
Fourche Mts., Arkansas. 
Schanzberg, Bohemia. 
Katzenkoppe, Bohemia. 
N. Jalvrb., 1900, vol. ii., p. 397. 
Whitman Cross, Table XII. 
AT, Jahrb., 1902, vol. ii., p. 390. 
N. Jahrb., 1902, vol. ii., p. 32. 
Q Journ., 1895, p. 318. 
P. Giacomelli, Soc. Alp. Trident., xix., p. 407, 
1894. 
David, Smeetk, and Shofield, J.R. Soc. N.S. W ., 
xxix., p. 477, 1895. 
Mitsclierlich, Zeitsch. d. d. geol. Gesell ., 1863, 
p. 372. 
A r . Jahrb., 1903, vol. i., p. 417. 
A r . Jahrb., 1903-4, supp., 18, p. 465. 
A r . Jahrb., 1892, vol. i., p. 278. 
Gabbro. 
Basalt (also groups 44 
and 55). 
Hornbl. gabbro. 
Felspar basalt. 
Basic glass. 
Basalt. 
Basalt. 
Olivine basalt. 
Arifegite. 
Limburgite. 
Nepheline basalt. 
Bologna, Apennines. 
Grants, New Mexico. 
Kasbek, Russia. 
Langenberg, Niederrheim. 
Challenger Expedition, 297. 
Tyrol. 
Antarctic Continent. 
Roland oeck. 
Sberz, France. 
Stellberg. 
Wilhclmsbobe. 
