73© INDEX TO VOLUME XXX 



PAGE 



Geology of Webster County and a Portion of Mingo District, Randolph 

 County, South of Valley Fork of Elk River. By David B. Beger. 

 Review by A. C. McF 329 



Glacial Loess Accumulation, The Time of, in its Relation to the 

 Climatic Implications of the Great Loess Deposits: Did They 

 Chiefly Accumulate during Glacial Retreat ? By Stephen Sargent 

 Visher 472 



Glenk, Robert. Louisiana Lignite. Review by C. H. B., Jr.. . . 262 



Glossary of the Mining and Mineral Industry, A. By Albert H. Fay. 



Review by E. S. B 263 



Goldman, Marcus I. Lithologic Subsurface Correlation in the "Bend 



Series " of North Central Texas. Review by C. H. B., Jr. . . 333 



Grabau, A. W. Geology of the Non-Metallic Mineral Deposits other 

 than Silicates. Vol. I. Principles of Salt Deposition. Review 

 byW. T. B 721 



Grade and Class Terms for Clastic Sediments, A Scale of. By Chester 



K, Wentworth 377 



Great Fault Troughs of the Antilles, The. By Stephen Taber . . 89 



Gypsum Deposits of the United States. By R. W. Stone. Review by 



F. P. S 327 



Gypsum in 1919. By R. W. Stone. Review by E. S. B. . . . 336 



Harder, Edmund Cecil. Iron Depositing Bacteria and Their Geological 



Relations, Review by C. H. B., Jr 506 



Hayes, A. O. The Malagash Salt Deposit, Cumberland County, Nova 



Scotia. Review by J. F. W 82 



Helbronner, P. Description geometrique des Alpes Frangaises, Annexe 



du Tome second. Review by W. H. Hobbs 717 



Helium-Bearing Natural Gas. By G. Sherburne Rogers. Review by 



E. S. Bastin 509 



Heron, A. M., B.Sc, F.G.S. The Geology of Northeastern Rajputana 



and Adjacent Districts. Review by A. C. McF 176 



Hess, Frank L. Tungsten in 1918. Review by E. S. B. and C. H. B., Jr. 423 

 Hess, Frank L., and Larsen, Esper S. Contact-Metamorphic Tungsten 



Deposits in the United States. Review by E. S. B 719 



Hobbs, W. H. Review of Description geometrique des Alpes Frangaises, 



Annexe du Tome second, by P. Helbronner 717 



Hot Water Supply of the Hot Springs, Arkansas, The. By Kirk Bryan 425 



Igneous Rocks, On the Representation of, in Triangular Diagrams. By 



Albert Johannsen 167 



Igneous Rocks, The Physical Chemistry of the Crystallization and 



Magmatic Differentiation of. V. By J. H, L. Vogt . . .611 



Igneous Rocks, The Physical Chemistry of the Crystallization and 



Magmatic Differentiation of. VI. By J. H. L. Vogt . . . 659 



