Williams, M. Y. The Silurian Geology and Faunas of Ontario Penin- 
sula, and Manitoulin and Adjacent Islands. Review by J. F. W. 
INDEX TO VOLUME XXIX 757 
; PAGE 
Summary Report, Canadian Geological Survey. Part C. Alberta- 
Saskatchewan Region. Part D. Manitoba Region. Part F. 
Maritime Province Region. Part G. The Platinum Situation in 
Canada. Review by J. F. W. 3 670 
Summary Statement of the Groundwork trendy, Teta Sinenraniion 
and the Formative Processes. XIV. Groundwork for the Study 
of Megadiastrophism. Part I. By Thomas C. Chamberlin 391 
Theoretical Considerations of the Genesis of Ore Deposits. By R. H. 
Rastall 487 
Thwaites, F.T. A Given Gravel Sean in avian af epee “Hits: 
consin 57 
ines, ke Iie Semaesiene as io the Description ar Nawiiag of ‘Sadi 
mentary Rocks 650 
Troxell, Edward L. The Neen of a Nonceeen in paleantalony anil ¢ a 
New Kind of Type Specimen Sue Oa mine 0207/5) 
Two Gas Collections from Mauna Loa. E, S. shepherd: Review by 
E. S. Bastin Ba Weyoh7/ 
Types of Rocky iio Siaaainee in . Seutiheaston ithe By 
George Rogers Mansfield SAM ei ee ee 
Upper Cretaceous of Maryland, Systematic Report. By Maryland 
Geological Survey. Review by A.C. McF. . . . 675 
Viala, Dr. M. Les Iles Wallis et Horn. (The Wallis and Horne 
Islands, Pacific Ocean.) Review by W. M. D. 483 
Virgilina District of Virginia and North Carolina, The Geslony anal Ore 
Deposits of the. By Francis Baker Laney. Review by R. A. J. 387 
Vogt, J. H. L.. The Physical Chemistry of the Crystallization and 
Magmatic Differentiation of Igneous Rocks . . 318, 426, 515, 627 
Volcanic Earthquakes. By Charles Davison , sti diccanteRe 97 
Vulcanism and Mountain-Making: A Supplementary N oe By Rollin 
T. Chamberlin atari tintin athe hf ap oe 166 | 
Wallis et Horn, Les Iles. (The Wallis and Horne Islands, Pacific 
Ocean.) Par le Dr. M. Viala. Review by W. M. D. é 483 
Water Resources of Maryland, The Surface and Underground, Taciecine 
Delaware and the District of Columbia. By William Bullock 
Clarke, E. B. Matthews, and E. W. Berry. The Geography of 
Maryland. By William Bullock Clarke. Review by A.C. McF. 674 
Webster County, Detailed Report on. By D.B. Reger. Abstract. 579 
Wentworth, Chester K.' Russell Fork Fault of Southern Virginia 351 
673 
