132 Proceedings of the Royal Society of Edinburgh. [Sess. 
List of 1000 Rocks 
Group. 
Si0 2 . 
Ti0 2 . 
PA- 
H 2 0. 
a\o 3 . 
Fe 2 0 3 . 
FeO. 
MgO. 
CaO. 
NajO. 
K 2 0. 
Total. 
Sp. Gr. 
43 
48-8 
8-9 
100*4 
(278) 
48-5 
2-2 
■2 
i-j 
18*4 
7-6 
1*2 
6-7 
10-4 
30 
■6 
100*0 
48-4 
3-1 
2-2 
13-4 
40 
8-5 
6'5 
8-6 
31 
21 
99*9 
47*7 
2-6 
•2 
2-9 
14-8 
5-0 
6-4 
5-5 
93 
3*5 
1-6 
1001 
2*9*9 
47-4 
31 
•4 
2-3? 
16-7 
6-7 
41 
10-8 
30 
•9 
100*0 
43-7 
2-8 
•6 
4-5 
14-8 
2-4 
7-5 
7-0 
10-8 
31 
2-9 
100*1 
2*91 
19 rocks 
500 
1-4 
•2 
23 
15-5 
5-2 
5-6 
5*6 
92 
31 
21 
100*1 
2*95 
. ± 
•o 
±1-2 
_ ±1 
1 
1-5 
±11 
±5*9 
(2-71) 
6 ab 
a b 
51'2 
•4 
'Ll 
•1 
159 
9-3 
3-0 
6*5 
10-4 
1-2 
1*6 
99*7 
3*19 
51-0 
1-8 
■7 
10 
14-5 
4-2 
4-4 
8*2 
51 
1-8 
7*2 
99*9 
50-2 
1*9 
■2 
16-2 
31 
81 
7-5 
8-6 
34 
1-4 
100*6 
(279) 
50-0 
1-4 
16-5 
12-3 
5-5 
9-5 
23 
1*5 
99*0 
49-6 
33 
15-4 
12-3 
7-4 
9-6 
2-0 
*9 
100*4 
490 
1-6 
1-9 
96 
7-6 
8-7 
30 
100*2 
49-0 
2-2 
•1 
2-0 
14-4 
4-3 
6-6 
8-4 
8-4 
3*4 
2*3 
101*9 
2*94 
48-8 
3*6 
18-1 
3-5 
7-2 
4-9 
8-4 
37 
1*9 
100*1 
2*79 
48'8 
*9 
1-0 
18*7 
7-2 
34 
6-0 
95 
3-2 
11 
99*9 
2*91 
48-3 
1-6 
1-9 
16*7 
40 
6-3 
5-8 
8-3 
3-2 
4*1 
100*2 
2*90? 
47-9 
1-9 
•3 
•2 
16-6 
5-7 
81 
4-4 
9'4 
32 
2*1 
99*8 
47-7 
1-8 
1*4 
19*0 
•9 
8-8 
87 
90 
2-5 
*5 
100*3 
2*89 
47-6 
1*4 
32 
17-2 
36 
8-5 
63 
6-4 
47 
1*3 
100*2 
46-8 
1*8 
17-9 
53 
56 
73 
8-2 
3-5 
2*2 
98*6 
46-0 
3-1 
192 
59 
6-9 
6-8 
8-7 
33 
1*2 
1011 
2*80? 
45-9 
4-2 
18-2 
1-2 
9-5 
101 
7-2 
21 
1*8 
100*1 
2*96 
45-8 
1*7 
•6 
3-2 
159 
7-4 
61 
6-9 
7-2 
34 
1*3 
99*6 
17 rocks 
48-4 
1-0 *1 
1*9 
16-9 
4-0 
7-5 
7-0 
8*4 
2-9 
2*0 
1001 
2-93 
1 
* 
i-i 
±12 
±1 
■! 
±! 
is 
±- 
L*2 
±5*9 
(2-79) 
b abb a c 
45 
55*7 
20-4 
6-4 
3-8 
83 
57 
1*9 
102*4 
52-8 
•5 
1-2 
17-8 
1*2 
4-8 
4*8 
12-9 
30 
*5 
99*5 
2*91 
51*3 
■1 
17'5 
4-5 
4-9 
3-8 
131 
2-2 
2*4 
100*9 
49-8 
•8 
•1 
20 
20-0 
63 
•5 
70 
11-3 
2-2 
*6 
100*6 
49-7 
•8 
2-4 
14-4 
4-2 
38 
63 
101 
3-2 
5*5 
100*2 
49-6 
•3 
36 
19-2 
21 
5-0 
49 
100 
5-6 
1*0 
101*4 
2*78 
49-0 
•6 
5-3 
17-7 
21 
65 
21 
8-4 
6-8 
2*1 
100*6 
48-6 
•1 
3*1 
20-2 
1*3 
3*0 
7-6 
14-0 
2-2 
*2 
100*3 
47-8 
23 
1-3 
•3 
161 
4-3 
36 
5-5 
107 
4-5 
4*1 
100*5 
2-86 
47-8 
•3 
•5 
•6 
20-5 
2-5 
6-4 
4*6 
107 
47 
*5 
100*1 
47-6 
1*4 
2-7 
2*2 
14-5 
4-9 
4-4 
9-5 
67 
4*1 
1007 
2-'79 
47-3 
•9 
*7 
1*4 
20-8 
1-9 
4-5 
6-4 
13-0 
2-8 
■2 
99*9 
46-6 
3-0 
•9 
18-2 
i-S 
6-0 
134 
4-4 
1*4 
100*7 
Classification of Igneous Rocks. 
133 
1907-8.] 
— continued. 
F. L. Ransome, B.U.S.G.S., 89, p. 58, 1898. 
J. P. Iddings, M. U.S.G.S., xxxii., ii., p. 438, 
1899. 
Hatch, Petrology, p. 179. 
N. Jahrb., 1892, yol. i., p. 278. 
N. Jahrb., 1899, suppl., p. 550. 
N. Jahrb., 1893, i., p. 322. 
Basalt, not fresh. 
Basalt. 
Dolerite. 
Plagioclase basalt. 
Monchiquite. 
California. 
Yellowstone Park. 
Clee Hill. 
Near Cassel. 
Neila. 
Brazil. 
Q. Journ., 1897, p. 409. 
A. Sauer, Mt. Bad. G.L.A., ii., p. 258, 1892. 
N. Jahrb., 1900, ii., p. 238. 
iV. Jahrb., 1902, ii., p. 390. 
Q. Journ., 1879, p. 586. 
N. Jahrb., 1900, ii., p. 238. 
N. Jahrb., 1892, i., p. 278. 
Q. Journ., 1905, p. 481. 
1 N. Jahrb., 1905, ii., p. 62. 
1 Clarke, Bull. U.S. Geol. Surv., No. 168, 1900, 
1 p. 140. 
W. C. Brogger, Eg. Kg., iii., p. 83, 1899. 
A. N. Winchell, A.G., xxvi., p. 181, 1900. 
A. W. Howitt, Tr. R. Soc. Viet., xx., p. 53, 1884. 
N. Jahrb., 1903-4, suppl., p. 465. 
Hatch, Petrology, p. 191. 
Q. Journ., 1883, p. 303. 
C. v. John, Jb. G.R. A. Wien., xlix., p. 252, 1899. 
Augite diorite. 
Durbachite. 
Glassv basalt. 
Hornbl. mica gabbro. 
Diabase. 
Basalt. 
Basalt, micaceous. 
Dolerite. 
Amphibolite. 
Olivine dolerite. 
Essexite. 
Olivine gabbro. 
Diorite. 
Limburgite. 
Olivine basalt. 
Diabase. 
Gabbro. 
Seven Pagodas, Madras. 
Durbach, Bl. Forest. 
Cockburn Is., Antarctics. 
Tchatch, Kasbek. 
Sp. Guiana, Venezuela. 
Cockburn Is., Antarctics. 
Staufenberg. 
Hailstone Hill, Rowley. 
Umhausen. 
Valmont, Colorado. 
Minnesota. 
Noyana, Victoria. 
Steiermark. 
Garlton Hills. 
Rhosson, St Davids. 
Tyrol. 
Q. Journ., 1884, p. 447. 
Q. Journ., 1894, p. 653. 
N. Jahrb., 1904, vol. i., p. 68. 
N - Jahrb., 1900, vol. i., p. 75. 
J. Steinecke, Z.'Nw. Halle, vi., p. 12, 1887. 
H. W. Fairbanks, J3. Deo. G. Un. Cal., ii., 
p. 30, 1896. 
W. D. Matthew, Tr. N.Y. Acad., iv., p. 213, 
1895. 
Stokes, Bull: U.S. Geol. Surv., No. 168, 1900, 
p. 225. 
Whitman Cross, Table XII. 
U Chelius, Notbl. Ver. Erdh, xviii., p. 24, 1897. 
Whitman Cross, Table XII. 
H. Jahrb., 1901, yol. i., p. 242. 
N - Jahrb; 1905, yol. i., p. 437. 
Augite andesite. 
Gabbro, banded. 
Monzonite. 
Gabbro. 
Leucitophyre. 
Augite teschenite. 
Diorite porphyrite. 
Diallage gabbro. 
Leucite tephrite. 
Olivine gabbro. 
Tinguaite. 
Amphibole gabbro. 
Nephel. gabbro. 
Miogi San, Japan. 
Isle of Skye. 
Monzoni. 
Michigan. 
Persia. 
California. 
New Brunswick. 
Beverly Creek. 
Tetschen, Bohemia. 
Hessen. 
Two Buttes, Colo. 
Beaver Creek, California. 
Ampangarinana, 
