788 INDEX TO VOLUME XVIII 



PAGE 



Taylorsville Region, California, Geology of the. By J. S. Diller. 



Review by E. R. L 286 



Tertiary Plants of British Columbia, Report on. By D. P. Penhallow. 



Review by E. R. L. 677 



Traite de geographie physique. By Emanuel de Martonne. Review 



byF. L 387 



Travis, C. On the Behavior of Crystals in Light Parallel to an Optic 



Axis. Review by Albert Johannsen . . . . . .482 



Tremblements de terre ressentis pendant I'annee 1905, Les. By Adolf 



Christensen et Georg Ziemendorff. Review by W. H. H. . 197 



Tutton, A. E. H. Crystalline Structure and Chemical Constitution. 



Review by Albert D. Brokaw ....... 582 



Tyrrell, J. B. "Rock GlaSiers" or Chrystocrenes .... 549 



Uhlemann, Alfred. Die Pikrite des sachsischen Vogtlandes. Review 



by Albert Johannsen . , . . . . .581 



Unifilares Horizontalpendel. By Siegmund Szirtes. Review by W. 



H. H 197 



Valley Configurations in Low Latitudes, Certain. By T. C. Chamber- 



lin and R. T. Chamberlin .117 



Virginia, West of the Blue Ridge, The Cement Resources of. By Ray 



S. Bassler. Review by R. T. C. 296 



Wagner, Dr. Percy A. Die Diamantfiihrenden Gesteine Siidafrikas. 



Review by R. T. C 295 



Whitehorse Copper Belt, Yukon Territory, The. By R. G. McConnell. 



Review by E. R. L. . . . . . . 570 



Williston, S. W. Dissorophus Cope ...... 526 



. A Mounted Skeleton of Platecarpus ... -537 



. New Permian Reptiles : Rhachitomous Vertebrae . . 585 



Wilson, W. J. Report on a Portion of the Algoma and Thunder Bay 



Districts, Ontario. Review by E. R. L. . . . . 572 



Wright, Fred Eugene. A New Ocular for Use with the Petrographic 



Microscope. Review by Albert Johannsen .... 483 

 . A New Petrographic Microscope. Review by Albert Johann- 

 sen ........... 483 



Yakutat Bay Region, Alaska, The. By Ralph S. Tarr and Bert S. 



Butler. Review by E. R. L S7i 



Yorkshire Type Ammonites. Edited by S. S. Buckman. Review by 



S. W . . 390 



Ziemendorff, Georg. See Adolf Christensen ..... 



