INDEX TO VOLUME XX 
Hennen, Ray E. Wirt, Roane, and Calhoun Counties. Review by 
Jaks 1D 18 
Heutigen Ansichten iiber Wesen wd Enetchune der Keerallacen 
Schiefer, Die. By L. Milch. Review by E. Steidtmann : 
High School Geography, Physical, Economic and Regional. Pts. I 
and II, Physical and Economic. By Charles R. Dryer. Review 
by W. H. H. 
Hill, James M. The Mining Districes of ihe Western Umted States 
Review by A. D. B. : : : ; : : : ‘ ; 
Hobbs, William Herbert. Characteristics of Existing Glaciers. 
Review by A. E. F. 
Hole, Allen David. Glaciation in ihe Tetturide Ouadrangle Calera dor I 
Glaciation in the Telluride Quadrangle, Colorado. II 
Glaciation in the Telluride Quadrangle, Colorado. III.  . 
Hopkins, Thomas Cramer. Glacial Erosion in the San Juan Mountains, 
Colorado. Review by A. E. F. 
Howchin, Walter. Australian Glaciations 
Hussak, Eugen. By Miguel A. Lisboa ‘ 
Hyde, Jesse E. An Occurrence of Coal Which Beare elsnas of 
Unusual Conditions Accompanying Its Deposition . 
Iddings, Joseph P. Problems in Petrology. Review by Whitman 
Cross 
Rock Manerals, Their Chemical and Physical Characters and 
Their Determination in Thin Sections. Review by Albert 
Johannsen 
Iddings, J. P., Whituan Gross: on We Eeeeon H. S. Washineron 
Modifications of the Quantitative System of Classification of 
Igneous Rocks . a ik SU aie hy es eR eRe ies 
Igneous Rocks of Japan. V, Preliminary Notes on Some. By S. 
Kozu . : : : : 
Igneous Rocks of Japan. Pelee Notes! on ee VI. ByS. Koézu 
Igneous Rocks. The Natural Classification of. By Whitman Cross. 
Author’s Abstract SiR ital Wa Nien aa 
Illinois State Geological Survey. Ballet No. m6. Review by F. M. H. 
Inland Lakes of Wisconsin, The. By Edward A. Birge and Chauncey 
Juday. Review by W. W. A. MCE Sc. rec tauies, cet ier 
Inouye, Kinosuke. The Iron Ore of Corea. Review by A. D. B. 
The Iron Ore Supply of Japan. Review by A. D. B. 
Iron Mines and Mining in New Jersey. By W.S. Bayley. Review 2 
Hacie: j 
Tron Ore of Corea, The. By ‘Greate Teuye. Revers by A. D. B. 
Iron Ore Supply of Japan, The. By Kinosuke Inouye. Review by 
AED Be 
783 
PAGE 
581 
272 
678 
679 
376 
502 
605 
710 
379 
193 
148 
316 
362 
83 
55° 
45 
656 
362 
677 
676 
96. 
94 
284 
96. 
04 
