vi INDEX TO VOLUME I. 



Iddings Joseph P. Genetic Relationships among Igneous Rocks. Studies for 



Students. - - - - - - - 833 



Reviews : — Eruptive Rocks of Montana — Waldemar Lindgren. A Soda- 

 lite-Syenite and other Rocks from Montana — W. Lindgren. Acmite- 

 Trachyte from the Crazy Mountains, Montana — J. E. Wolff. - - 634 



The Volcanic Rocks of the Andes. - ' - - - - 164 



Iron. The Chemical Relation of Iron and Manganese in Sedimentary Rocks. 



R. A. F. Penrose, Jr. - - - - 356 



Kalkowsky, Ernest. Ueber Geroll - Thonschiefer glacialen Ursprungs in Kulm 



des Frankenwaldes. (Abstract). - 862 



Karnes. The Horizon of Drumlin, Osar, and Kame Formation. T. C. Chamberlin. 525 

 King, Clarence. The Age of the Earth. (Abstract). - - - 202 



King, F. H. Observations and Experiments on the Level and Rate of 



Movement of Ground-water. (Abstract). - 208 



Knowlton, F. H. Reviews : — Cretaceous Fossil Plants from Minnesota. By 



Leo Lesquereux'. - - 302 



On the Organization of the Fossil Plants of the Coal-Measures. By 



W. C. Williamson. - -..,.•.-.. 303 



Kummel, Henry B. Some Rivers of Connecticut. - - - 371 



Lake Superior. An Historical Sketch of the Lake Superior Region to Cam- 

 brian Time. C. R. Van Hise. Plate I. - - - -11} 



Sketch of the Present State of Knowledge concerning the Basic Mas- 

 sive Rocks of the Lake Superior Region. W. S. Bayley. - 587 

 The Basic Massive Rocks of the Lake Superior Region. W. S. Bavley. 433, 688 

 Las Animas Glacier. George H. Stone. - 471 

 Laurentian. Geological History of the Laurentian Basin. Studies for Students. 



Israel C. Russell. ---.... 394 



On the Typical Laurentian Area of Canada. Frank D.Adams. - 325 



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



Lead. Notes on the Lead and Zinc Deposits of the Mississippi Valley and the 



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



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



Leverett, Frank. The Correlation of Moraines with Raised Beaches of Lake 



Erie. (Abstract). - - - - - - - 99 



The Glacial Succession in Ohio. - - - - - - 129 



Maine. The Osar Gravels of the Coast of Maine. Geo. H. Stone. 246 



Malaspina Glacier. I. C. Russell. - - - - - - 219 



Manganese. The Chemical Relation of Iron and Manganese in Sedimentary 



Rocks. R. A. F. Penrose, Jr. - ... 356 



A Pleistocene Manganese Deposit near Golconda, Nevada. R. A. F. 



Penrose, Jr. - - - - - 27 s 



Melilite-Nepheline-Basalt and Nepheline-Basanite from Southern Texas. A. 



Osann. 



341 



Metamorphism. On the Migration of Material during the Metamorphism of 



Rock Masses. Alfred Harker. ..... 1574 



Migration of Material during the Metamorphism of Rock Masses. Alfred Harker. 574 



