96 Proceedings of the Royal Society of Edinburgh. [Sess. 
List of 1000 Rocks 
Classification of Igneous Rocks. 
97 
1907-8.] 
— continued. 
Duparc and Maazec, Mem. Soc. Pliys. Gen., 
xxxiii., No. 1, p. 82, 1898. 
A. Lagorio, T.M.P.M . , viii., p. 454, 1887. 
Weed and Pirsson, B.U.S.G.S., 139, p. 101, 
1896. 
J. E. Spurr, B.U.S.G.S., 168, p. 228, 1900. 
Duparc, Pearce, and Ritter, M. Soc. Ph. Genev., 
xxxiii., p. 77, 1900. 
Q. Joum ., 1899, p. 467. 
N. Jahrb., 1901, vol. ii., p. 244. 
Duparc, Pearce, and Ritter, M. Soc. Ph. Genev., 
xxxiii., p. 77, 1900. 
Duparc, Pearce, and Ritter, M. Soc. Ph. Genev., 
xxxiii, p. 77, 1900. 
N. Jahrb., 1893, vol. L, p. 285. 
N. Jahrb., 1906, vol. i, p. 222. 
Merrill. 
tieol. Magazine, 1889, p. 546. 
N. Jahrb., 1893, voL 1, p. 285. 
Aplite. 
Nevadite. 
Quartz tourm. porphyry. 
Tonalite aplite. 
Liparite. 
Rhyolite. 
Metarhyolite. 
Liparite. 
Liparite. 
Liparite. 
Pumice. 
Hornblende granite. 
Soda felsite. 
Liparite. 
Mont Blanc. 
Colorado. 
Montana. 
Alaska. 
Algeria. 
Waihi, New Zealand. 
Fox River. 
Algeria. 
Algeria. 
Cabo de Gata. 
Manindjau, Sumatra. 
Utah. 
Co. Wicklow. 
Cabo de Gata. 
N. Jahrb., vol. i., 1900, p. 27. 
Q. Joum., 1900, p. 679. 
Hatch, Petrology, p. 138. 
Q. Joum., 1893, p. 545. 
L. Ricciardi, Att. Ac. Gioen., xviii., p. 12, 1885. 
Q. Joum., 1902, p. 170. 
Prestwieh, vol. i., p. 37. 
Q. Joum., 1899, p. 467. 
Von Sommaruga, Jahrb. d. k. gaol. Reichs., 1866, 
p. 464. 
Q. Joum., 1906, p. 117. 
Geol. Magazine, 1889, p. 546. 
Q. Joum., 1899, p. 467. 
N. Jahrb., 1900, vol. ii., p. 221. 
A. Lagorio, -T.M.P.M., viii., p. 444, 1887. 
Holland, Quart. Joum. Geol. Soc., p. 435, 1889. 
L. Milch, N.J.B.B., XU., p. 163, 1899. 
N. Jalnb., 1904, vol. i., p. 65. 
Aplite, reduced to 100. 
Felsite, dark grey. 
Rhyolite. 
Quartz felsite. 
Porphyry. 
Obsidian. 
Rhyolite. 
Rhyolite. 
Granite. 
Pot. soda felsite. 
Rhyolite. 
Rapakiwi. 
Obsidian. 
Soda eurite. 
Granitite. 
Granite. 
Harzburg. 
Co. Waterford. 
Wrekin. 
Piedmont. 
Cam Brea, Cornwall. 
Fossa Bianca, Lipari. 
Willowlake, California. 
Hungary. 
R. Madeira, S. America. 
Co. Wicklow. 
Slate Creek, California. 
Rodoen Island. 
Hungary. 
Cader laris. 
Silesia. 
Steiermark. 
N. Jahrb., 1902, vol. ii., p. 231. 
Q. Jovjm., 1902, p. 170. 
Whitman Cross, Table XIII. 
Q. Joivrn., 1880, p. 13. 
Granulite. 
Granite. 
Granite. 
Red granite. 
Borry, Moravia. 
Botallak, Cornwall. 
Blue Hills, Mass. 
Peterhead. 
VOL. XXVIII. 
