694 INDEX TO VOLUME XXXI 



PAGE 



Ferruginous Chert Formations of Notre Dame Bay, Newfoundland. 



By Edward Sampson 571 



Folding, Some Experiments in. By R. T. Chamberlin and F. P. 



Shepard 490 



Folds Resulting from Vertically Acting Forces. By W. I. Robinson . 336 

 Fossil Plants, Volumes I-IV. By A. C. Seward. Review by A. C. N. 87 

 Foundry Sands of Minnesota, The. By G. N. Knapp. Author's 



Abstract 349 



Freudenburg, Wilhelm. Geologie von Mexiko. Review by A. H. B. . 258 

 Friendly Arctic, The. By Vilhjalmur Stefansson. Review by William 



Herbert Hobbs 1 54 



Front Range in Colorado, The Red Beds of the: A Study in Sedimenta- 

 tion. By A. J. Tieje 192 



Fuller, Margaret Bradley. The Physiographic Development of the 



Big Thompson River Valley in Colorado 126 



Gastropods, The Upper Cretaceous, of New Zealand. By O. Wilckens. 



Book Notice 166 



Gemstones in the Museimi of Practical Geology, Guide to the Collection 



of. By W. F. P. McLintock. Book Notice 616 



Geological Formations of Indiana, Nomenclature and Description of the. 



Part IV, Handbook of Indiana Geology. By E. R. Cimiings. 



Review by E. M. Kindle . . 259 



Geologie von Mexiko. By Wilhelm Freudenburg. Review by A. H. B. 258 

 Geology of the Lower Findhorn and Lower Strath Nairn, The, Including 



Part of the Black Isle near Fortrose. By John Home. Book 



Notice 528 



Geology of the Tertiary and Quaternary Periods in the Northwest Part 



of Peru. By T. O. Bosworth. Review by T. B. R. . . . 524 

 Geomorphology of New Zealand, Part I, Systematic. By C. A. Cotton. 



Review by A. H. B 255 



Gordon, Clarence E. Studies in the Geology of Western Vermont. 



Review by A. C. McF 167 



Gordon, Samuel G. Mineralogy of Pennsylvania. Review by H. E. 



McKinstry . 434 



Grand Isle, A Detailed Study of the Trenton Beds of. By George H. 



Perkins. Review by A. C. McF 167 



Grand Isle, Vermont, A Report on the Fossils of the So-called Trenton 



and Utica Beds of. By Rudolph Ruedemann. Review by 



A. C. McF 167 



Grand Mesa, Colorado, The Glacial Geology of. By Junius Henderson 676 

 Granites of Washington, D.C., The. By Henry S. Washington. Review 



by Albert Johannsen . . . . . . . . . . 82 



