INDEX 855 



SESSIONAL PAPER No. 25a 



Page. 



Smith, W. S. T 270,640 



Snoqualmie granodiorite 469, 535 



Spangled schists 266 



Specific gravities, average 696 



— ■ of rock melts 7402. 



Spencer, A. C 21 



Sphaeriuin 87 



Spirifer cameratus 511 



disjunctus Ill 



englemani 112,115 



• leidyi 116 



utahensis 112 



— ■ whitneyi Ill 



Spiriferina 511,512,513 



Spokane Hills section 188 



Square Butte, Montana, magmatic differentiation at 251, 772 



Stanton, T. W 3, 87, 487, 488, 489, 517, 555 



Steinmann, G 64,659 



Stenopora 116 



Stocks, H. B 671 



Stoping, magmatic 734ff., 777 



Stream adjustment 609 



Structure of : — 



Clarke range 47, S9 



Columbia mountain system 420 



Galton-MacDonald mountain system 117 



Hozomeen rang© 504 



Nelson range 277 



Okanagan range 466 



Purcell mountain system 137 



Eossland mountains 370 



Skagit range 544 



Subconsequent drainage 614 



Subordinate volcanoes 712 



Substratum, basaltic 573, 699, 706, 713, 780 



Suess, E 721 



Sumas diorite 507, 527 



, analysis of 533 



- granite 507, 526, 784 



analysis of 527 



Summit series 47,141 



, columnar section of 141 



Sun-cracks 67, 70, 72, 78, 82, 98, 100, 101, 103, 104, 108, 109, 123, 129, 136, 157, 163 



Superheat, magmatic 750 



Sutherland schists 321 



Syenite 356, 358, 448, 787 



porphyry 362,364,499,520 



Syntectic magmas 699, 734, 778, 783 



Syringopora 116,117 



Tamihy series 507, 518 



Tandem cirques 595 



Tarr, R. S 640 



Taxodium distichum 812 



Teall, J. J. H 454 



Tehamose. . 230 



Tellina 85 



Terebratuloid 511 



Termier, P 392 



