INDEX TO VOLUME XXxI 
Darton, N. H. Buried Valley of Susquehanna River in Luzerne 
County, Pennsylvania 
Davis, Charles H. New Species ‘com tle Santa Tas Mountains 
California, with a Discussion of the Jurassic Age of the Slates at 
Slate’s Springs . 
Deformations in Certain Ranges Bf the Gren Basin: ‘The Nattre of ihe 
Later. By Charles Laurence Baker oe Wie ae eee oe 
Determinative Mineralogy. By J. Volney Lewis. Review by A. D. B. 
Diastrophism and the Formative Processes. By T. C. Chamberlin. 
I. Introduction 
II. Shelf-Seas and Certain Terence ions of Diastrophisn, 
Ill. The Lateral Stresses within the Continental Protuberances 
and Their Relations to Continental Creep and Sea- 
Transgression . 
IV. Rejuvenation of the Continent: fe eee eas Se ae 
Doeltner,C. Handbuch der Mineralchemie. Review by R. C. Wallace 
Drift Pebbles, The Effect of Leaching on. By J. A. Udden . 
Earth Features and Their Meaning. An Introduction to Geology. By 
William H. Hobbs. Review by G. D.H. . PS et aa rg 
Eastman, Charles R. Triassic Fishes of Connecticut. Review by 
E. A. S. sh JGR Rigo aa ae 
Economic Geology, Conmibucions to, 1910. Pt. I. Metals and Non- 
Metals except Fuels. By C. W. Hayes and W. Lindgren. Review 
byeA. DB; cht Ay Ag ah 
Economic Geology, Contebutions to, voro, Pt. EF.” Mineral: Fuels. 
By M. R. Campbell. Review by A. D. B. 
Editorial ee es Gas ee Se 
Evans, George Waris The Coal Fields of King County. Review 
pyeRe ie C- 
Exposure Showing Post- eaten Glnention near iowa Cis, ioe A 
By Morris M. Leighton . 
Feldspars, Observations on the. By Austin F. Rogers 
Form of Laccoliths, The Bearing of Progressive Increase of Ross 
during Intrusion on the. By Sidney Paige 
Fossil Feathers and Some Heretofore Undescribed Fossil Bide. By Re 
W. Shufeldt 
Fry, William H. Log of W all of Peneyivania Salt omens Deer 
Michigan 
TC eUOuS OL To Neekipan Salt W alley 
Geology and Ore-Deposits of the Nizina District, Alaska. By Fred W. 
Moffit and Stephen R. Capps. Review by E. A. S 
Geology of Luzon, P.I., The. By Warren D. Smith, Ph.D. . 
761 
PAGE 
St 
