IV BULL. GEOL. SOC. AM., VOL. 5. 



Page 



Crustal Adjustment in the upper Mississippi A'alley ; by C. R. Keyes 231 



Age of the Auriferous Slates of the Sierra Nevada ; by J. P. Smith 243 



Geologic activity of the Earth's origiually absorbed Gases ; by A. C. Lane. . . 259 

 Extramorainic Drift between the Delaware and the Schuylkill ; by E. H. AVil- 



LiAMS, Jr 281 



Geology of Parts of Texas, Indian Territory and Arkansas adjacent to Red 



River; by R. T. Hill 297 



Lake Cayuga a Rock Basin ; by R. S. Taer. 339 



Pre-Paleozoic Decay of crystalline Rocks north of Lake Huron ; by R. Bell. . 357 

 Geologic Relations from Green Pond, New Jersey, to Skunnemunk Mountain, 



New York ; by N. H. Darton 367 



Trias and Jura in the western States ; by A. Hyatt 395 



The Shasta-Chico Series ; by J. S. Diller and T. ^y. Stanton 435 



Geology of a Portion of the Coosa Valley in Georgia and Alabama; by C. W. 



Hayes . . 465 



Mica Deposits in the Laurentian of the Ottawa District; by R. W. Ells 481 



Geological Sketch of Lower California; by S. F. Emmons and G. P. Merrill. . 489 

 Eastern Boundary of the Connecticut Triassic ; by W. M. Davis and L. S. Gkis- 



wold 515 



Pleistocene Problems in Missouri ; by J. E. Todd 531 



Proceedings of the Sixth Annual Meeting, held at Boston, December 27, 28 



and 29, 1893 ; H. L. Fairchild, Secretary 549 



Session of Wednesday, December 27 550 



Report of the Treasurer 550 



Election of Officers 552 



. Election of Fellows 553 



Amendments to the Constitution 553 



Amendments to the By-Laws 553 



Fourth Annual Report of the Committee on Photographs 554 



Geological Writings of Alexander Winchell 557 



Geological AVritings of Charles A. Ashburner; by Frank A. Hill. . 564 



Geological Writings of David Honeyman; by J. G. McGregor 567 



Geological Writings of George H. Cook ; by John C. Smock 569 



Geological Writings of Richard Owen ; by Joseph Stanley-Brown.. 571 

 Johann David Schoepf and his Contributions to North American 



Geology ; by George H. AYilliams 591 



The later Tertiary lacustrine Formations of the West [abstract] ; by 



W. B. Scott 594 



Session of Wedn^day Evening, December 27 596 



Session of Thursday, December 28 596 



Volcanite, an Anorthoclase-augite Rock chemicallj^ like the Dacites ; 



by William H. Hobbs 598 



Geographical Work for State geological Surveys ; by Wilijam M. 



Davis 604 



Session of Friday, December 29 609 



Report of the Council 609 



Secretarj^'s Report (509 



Treasurer's Report 614 



Editor's Report 614 



Insert the following slips in Contents, Volume 5, Bdlelin Geol. Soc. Amer. ; 

 one on page iv, and one on page 549. 



TX T7-_ 



^79. 



