EDITORIALS. 105 



The Trias and Jura of the Western States. Alpheus Hyatt. 



The Shasta-Chico Series of the Pacific Coast. J. S. Diller. 



The Cretaceous Faunas of the Shasta-Chico Series. T. W. Stanton. 



Geology of Indian Territory and Texas Adjacent to Red River. Robert 

 T. Hill. 



Notes on the Geology of Lower California. S. F. Emmons and G. P. 

 Merrill. 



Origin and Classification of the Green Sands of New Jersey. William B. 

 Clark. 



Crustal Adjustment in the Upper Mississippi Basin. Charles R. Keyes. 



A Geological Study of Lake Mohonk and Lake Minnewaska, N. Y. Wil- 

 liam H. Niles. 



Geologic Relations in the Belt from Green Pond, New Jersey, to Skunne- 

 munk Mountain, New York. N. H. Darton. 



A Prismatic Stadia Telescope. Robert H. Richards. 



Ancient Volcanic Rocks along the Eastern Border of North America. 

 George Huntington Williams. 



Ancient Eruptive Rocks in the White Mountains. C. H. Hitchcock. 



The Chemical Equivalence of Crystalline and Sedimentary Rocks. G. 

 K. Gilbert. 



Volcanite, an Anorthoclase Augite Rock chemically like the Dacites. 

 William H. Hobbs. 



Further Notes on the Occurrence of Albertite in New Brunswick, Canada. 

 H. P. H. Brumell. 



Alterations of Silicates in Gneiss at Worcester, Mass. Homer T. Fuller. 



Pre-paleozoic Decay of Crystalline Rocks North of Lake Huron. Robert 

 Bell. 



Gabbros on the Western Shore of Lake Champlain. James F. Kemp. 



Notes on the Occurrence of Mica in the Laurentian of the Ottawa District. 

 Robert W. Ells. 



Intrusive Sandstone Dikes in Granite. Whitman Cross. 



Age of the Auriferous Slates of the Sierra Nevada. James P. Smith. 



Origin of the Coarsely Crystalline Vein Granites, or Pegmatites. William 

 O. Crosby. 



A Classification of Economic Geological Deposits, based upon Origin and 

 Original Structure. William O. Crosby. 



Lake Cayuga a Rock Basin. R. S. Tarr. 



Pleistocene Problems in Missouri. James E. Todd. 



Remarks upon a supposed Glaciated Stone Axe from Indiana. G. Frede- 

 rick Wright. 



Pseudo-Cols. T. C. Chamberlin. 



Certain Features of the Past Drainage Systems of the Upper Ohio Basin. 

 T. C. Chamberlin and Frank Leverett. 



