CONTENTS OF VOLUME I. V 



Reviews : Crystalline Rocks from the Andes ; Untersuchungen an altkrys- 

 tallinen Schiefergesteinen aus dem Gebiete der argentinischen Republik ; 

 B. Kiihn. Untersuchung argentinischen Pegmatite, etc.; P. Sabersky. 

 Untersuchungen an argentinischen Graniten, etc.; J. Romberg, by 

 George H. Williams. The Mineral Industry, its Statistics, Technology 

 and Trade in the United States and other Countries ; Richard P. Roth- 

 well, by R. A. F. Penrose, Jr. . . . . . . _ . . 411-414 



Analytical Abstracts of Current Literature : A New Tseniopteroid 

 Fern and its Allies ; David White. Rainfall Types of the United 

 States ; Gen. A. W. Greely. Geographic Development of the Eastern 

 Part of the Mississippi Drainage System ; Lewis G. Westgate. On a 

 New Order of Gigantic Fossils ; Edwin H. Barbour. The Vertical 

 Relief of the Globe ; Hugh Robert Mill. ...... 419-42^ 



Acknowledgments. 423 



NUMBER V. 



The Basic Massive Rocks of the Lake Superior Region. W. S. Bayley. 433 



Notes on the State Exhibits in the Mines and Mining Building 

 at the; World's Columbian Exposition, Chicago, R. A. F. 

 Penrose, Jr. . . . . . . . . . . . . 457 



The Las Animas Glacier. George. H. Stone 471 



Studies for Students : Conditions of Sedimentary Deposition ; Bailey 



Willis . 476 



Editorials. 521 



Reviews : Correlation Essays, Archean and Algonkian ; C. R. Van Hise, by 



Rollin D. Salisbury; .......... 525 



Analytical Abstracts of Current Literature: Summary of Current 



Pre-Cambrian North American Literature. ..... 532 



NUMBER VI. 



Theory of the Origin of Mountain Ranges. Joseph Le Conte. . 542 



On the Migration of Material During the Metamorphism of 



Rock Masses. Alfred Harker. 574 



The Cordilleran Mesozoic Revolution. Andrew C. Lawson. . 579 



Sketch of the Present State of Knowledge Concerning the Basic 



Massive Rocks of the Lake Superior Region. W. S. Bayley. . 587 



A Study in Consanguinity of Eruptive Rocks. Orville A. Derby. 597 



A Dissected Volcano of Crandall Basin, Wyoming. Joseph P. 



Iddings. . .... . . . . . . . . 606 



Notes on the Lead and Zinc Deposits of the Mississippi Valley 



and the Origin of the Ores. Arthur Winslow. . . . 612 



Editorials. 620 



Reviews : Eruptive Rocks of Montana ; Waldemar Lindgren. A Sodalite- 

 Syenite and other Rocks from Montana; W. Lindgren. Acmite- 

 Trachyte from the Crazy Mountains, Montana ; J. E. Wolff, by Joseph 

 P. Iddings. ........... 634 



