Classification of Igneous Eocks. 
117 
1907 - 8 .] 
— continued. 
F. Rinne, Jb. Pr. G.L.A. , vii., p. 21, 1887. 
Soda trachyte. 
Rhongebirge. 
N. Jahrb ., 1869, p. 708. 
Andesite. 
Auvergne. 
iV. Jahrb., 1893, vol. ii., p. 497. 
Syenitic trachyte. 
Montana. 
iV. Jahrb., 1906, vol. i., 222. 
Amph. pyr. andesite (mean 
Sago, Sumatra. 
Whitman Cross, Table XIII. 
of three analyses) 
Andesite. 
Siebengebirge. 
iV. Jahrb., 1902, vol. ii., p. 399. 
Umtekite. 
Cabo Frio, Brazil. 
W. Tarassenko, cf. N.J., 1899, i., p. 463. 
Labradorite rock. 
Wolhynia. 
lY. Jahrb., 1904, vol. ii., p. 57. 
Phonolite. 
Br. E. Africa. 
N. Jahrb., 1904, vol. ii., p. 410. 
Pulaskite. 
Mt. Royal. 
N. Jahrb., 1903, vol. i., p. 74. 
Hatch, Petrology, p. 147. 
Trachyte (mean of 13). 
French Alps. 
Svenite. 
Plauenscher Grund. 
N. Jahrb., 1892, vol. ii., p. 255. 
Trachyte. 
Naples. 
iV. Jahrb., 1904, vol. ii., p. 57. 
Solosbergite. 
Br. E. Africa. 
N. Jahrb., 1902, vol. ii., p. 399. 
Nordnarkite. 
Cabo Frio, Brazil. 
N. Jahrb., 1892, vol. ii., p. 255. 
W. C. Brogger, Eg. Kg., ii., p. 33, 1895. 
H. J. Johnston-Lavis, Geol. Mag., Dec., iii., vi., 
Trachyte. 
Naples. 
Akerite. 
Norway. 
Trachyte. 
Naples. 
p. 77, 1889. 
J. P. Iddings, J.G., iii., p. 947, 1895. 
Quartz banakite. 
Yellowstone Park. 
N. Jahrb., 1902, vol. ii., p. 382. 
Lamprophylite, lujavrite. 
Kola. 
N. Jahrb., 1902, vol. ii., p. 382. 
Lujavrite. 
Lujaor, Urt Kola. 
Lujaor, Urt Kola. 
N. Jahrb., 1902, vol. ii., p. 382. 
Lujavrite. 
J. P. Iddings, J.G., iii., p. 947, 1895. 
Banakite. 
Yellowstone Park. 
jY. Jahrb., 1902, vol. ii., p. 67. 
Bostonite. 
Orkney Islands. 
W. Cross, 14, A.R.U.S.G.S., ii., p. 227, 1894. 
Augite porphyry. 
Utah. 
N. Jahrb., 1900, vol. ii., p. 236. 
E. 0. Hovey, A.J.S., iii., p. 291, 1897. 
Trachyte andesite. 
Sumatra. 
Keratophyre. 
Connecticut. 
N. Jahrb., 1893, vol. ii., p. 347. 
Resembles elaeol. syenite 
Arkansas. 
W. S. Bayley, B.G.S.A. , iii., p. 250, 1892. 
Nepheline syenite. 
New Hampshire. 
N. Jahrb., 1900, vol. i., p. 385. 
Soda syenite. 
Laupstadeid. 
N. Jahrb., 1893, vol. ii., p. 497. 
Acmite trachyte. 
Montana. 
W. Cross, 16, A.R. U.S.G.S., ii., p. 39, 1895. 
Phonolite. 
Colorado. 
Bull. U.S. Geol. Surv., jSTo. 148, p. 114. 
Phonolite. 
Dakota. 
E. Moller, N.J., 1888, i., p. 97. 
Phonolite. 
Rhongebirge. 
A. Geikie, p. 166, third edit. 
J. D. Irving, Amm. Y. Ac., xii., p. 272, 1899. 
Phonolite (average). 
Phonolite. 
Dakota 
Whitman Cross, p. 201. 
Laurdalite. 
Norway. 
