Classification of Igneous Rocks. 
109 
1907 - 8 .] 
— continued. 
N. Jahrb., 1904, vol. ii., p. 58. 
Rhyolitic obsidian. 
Br. E. Africa. 
H. Fiirstner, Z.K. , viii., p. 179, 1884. 
Pantellerite. 
Pantellaria. 
N. Jahrb., 1905, vol. i., p. 247. 
Liparite (mean 4, 5). 
Somali Desert. 
N. Jahrb., 1901, vol. i., p. 63. 
Quartz keratophy re (mean). 
Bukowina. 
H. Fiirstner, Z.K., viii., p. 186, 1884. 
Pantellerite. 
Pantellaria. 
N. Jahrb., 1895, vol. ii., p. 100. 
Kersantite. 
Croix de fer Dauphiny. 
N. Jahrb., 1904, vol. i., p. 53. 
Syenite porphyry. 
Malenic, Bohemia. 
N. Jahrb., 1901, vol. i., p. 63. 
iEgirine trachyte. 
Siebenbiirgen. 
N. Jahrb., 1904, vol. ii., p. 58. 
Phonolite obsidian. 
Br. E. Africa. 
N. Jahrb., 1905, vol. ii., p. 75. 
Augite aiidesite. 
Marian Island. 
N. Jahrb., 1905, vol. ii., p. 79. 
Gneiss (mean of 2). 
Schapbach, Black Forest. 
Q. Journ ., 1890, p. 349. 
Propylite (hornbl. mica 
andesite). 
Washoe. 
Q. Journ., 1890, p. 349. 
Hornbl. propylite (T. H. 
Holland). 
Mull. 
A. Geikie, p. 166, third edit. 
Trachyte, average. 
N. Jahrb., 1895, vol. ii., p. 100. 
Kersantite. 
Croix de fer. 
N. Jahrb., 1902, vol. ii., p. 231. 
Hornfels granulite. 
Borry Mts. 
Q. Journ., 1900, p. 686. 
Trachyte. 
Newtown Head, Co. Water- 
ford. 
C. Chelius, Erl. G. Kt. Hesse, V. Bl. Breusbach , 
Granite. 
Hessen. 
p. 24, 1897. 
A. Ossan, Z.D.G.G. , xl., p. 701, 1888. 
Cordierite andesite. 
Spain. 
N. Jahrb., 1893, vol. ii., p. 347. 
Quartz syenite. 
Fourche Mts., Ark. 
N. Jahrb., 1895, vol. ii., p. 99. 
Orthophyre. 
Chateau noir. 
N. Jahrb., 1893, vol. ii., p. 99. 
Augite porphyrite. 
Siipplingen. 
Q. Journ., 1883, p. 296. 
Basic tuff. 
St Davids. 
J. M. C. Henderson, Z.D.G.G., xlvii., p. 539, 
Mica syenite. 
Saxony. 
1895. 
N. Jahrb., 1893, vol. ii., p. 99. 
Augite porphyrite. 
Altonhausen. 
N. Jahrb., 1895, vol. ii., p. 99. 
Orthophyre (mean of 3). 
Chateau noir. 
Q. Journ., 1895, p. 192. 
Minette. 
Nair Point, Porthalla. 
Q. Journ., 1895, p. 192. 
Tachylitic rock. 
Garn Fawr, Fishguard. 
Q. Journ., 1895, p. 192. 
Augite porphyrite (Weis- 
selb.), see Rosenbusch, 
p. 501. 
F. Klockmann, Jb. Pr. G.L.A., 1890, xi., p. 210, 
Porphyrite. 
Near Magdeburg. 
1892. 
N. Jahrb., 1900, vol. ii., p. 221. 
Porphyrite. 
Gaflasion. 
F. V. Wolff, Z.D.G.G., Ii., p. 502, 1899. 
Augite porphyrite. 
Chile. 
