Classification of Igneous Eocks. 
113 
1907-8.] 
— continued. 
G. P. Merrill, Pr. U.S. Nat. Mus., xvii, p. 651, 
1895. 
Q. Journ., 1890, p. 349. 
Hyp. andesite. 
Pyroxene andesite. 
Montana. 
Washoe. 
H. W. Turner, 17, A.R.U.S.G.S., i., p. 727, 1896. 
N. Jahrb., 1893, p. 497, vol. ii. 
G. T. Prior, Min. Mag., xiv., p. 266, 1900. 
Hatch, Petrology , p. 163. 
N. Jahrb., 1904, vol. i., p. 70. 
N. Jahrb., 1902, vol. ii., p. 395. 
Bischof, Lehrb. d. Geol., I. Aufl., vol. ii., p. 2181. 
N. Jahrb., 1893, vol. ii., p. 497. 
Q. Journ., 1895, p. 319. 
Zeitsch. d. d. geol. Gesell., pt. iv., p. 375, 1868. 
N. Jahrb., 1892, vol. i., p. 312. 
A. S. Eakle, A.J.S., vi., p. 491, 1898. 
Rutley, p. 236. 
Q. Journ., 1905, p. 595. 
V. Hackman, Fennia, xi., p. 158, 1894. 
Soda syenite porphyry. 
Acmite trachyte. 
Solosbergite. 
Trachyte. 
Syenite porphyry. 
Mariupolite. 
Andesite. 
Acmite trachyte. 
Keratophyre. 
Quartz mica diorite. 
Andesite. 
Tinguaite. 
Andesite. 
Trachytic rock. 
Tinguaite. 
California. 
Montana. 
Abyssinia. 
Peppercraig. 
French Alps. 
Sea of Azoff. 
Siebengebirge. 
Montana. 
Ruebeland, Harz. 
Neurode. 
Sulphur Island. 
Massachusetts. 
Mean of several localities. 
St David’s Head. 
Finland. 
H. S. Washington, J.G., vii., p. 118, 1899. 
Merrill, p. 215. 
H. Rosenbusch, Elemente, p. 199, 1898. 
Zirkel, Zeitsch. d. d. geol. Gesell., 1859, p. 535. 
Solosbergite. 
Gneiss. 
Syenite porphyry. 
Trachyte. 
Massachusetts. 
Albemarle Co. 
Massachusetts. 
Eifel Gebirge. 
N. Jahrb., 1892, vol. i., p. 313. 
N. Jahrb., 1893, vol. ii., p. 347. 
Whitman Cross, Table XIII. 
Whitman Cross, Table XII. 
N. Jahrb., 1901, suppl. 14, p. 39. 
A. B. Lyons, A.J.S., ii., p. 424, 1896. 
Q. Journ., 1879, p. 44. 
K. A. Lossen, Jb. Pr. G.L.A., x., p. 316, 1892. 
Andesite pumice. 
Elaeolite syenite. 
Syenite. 
Laurvikite. 
Keratophyre. 
Andesite. 
Foyaite, elaeolite syenite. 
Porphyrite. 
Sulphur Island. 
Fourche Mts., Arkansas. 
Piedmont. 
Laurvik, Norway. 
Harz. 
Hawaii. 
Portugal. 
Harz. 
(Fuchs), Prestwich, i., p. 35. 
Q. Journ., 1890, p. 349. 
Gneiss (reduced to 100). 
Propylite- (hornbl. ande- 
site). 
Harz. 
Tokay. 
VOL. XXVIII. 
8 
