764 INDEX TO VOLUME XXI 
Meyers Mining District, Geology and Ore Deposits of the, and Geology 
and Ore Deposits of the Oroville-Nighthawk Mining District. By 
Joseph B. Umpleby. Review by Bs Aci: 
Michigan Basins, The Late Glacial and Bose glacial Uplift af He 
Earthquakes in Michigan. By William Herbert Hobbs. Review 
bysE. Avs: ; : 
Michigan Salt Wells, Sections of woe By William lal. ee ; 
Miller, Benjamin LeRoy, Edward W. Berry, Thomas Leonard Watcont 
and William Bullock Clark. The Physiography and Geology of the 
Coastal Plain Province of Virginia. Review by E. A. S. 
Miller, William J. Variations of Certain Adirondack Basic Intrusives. 
Mineralchemie, Handbuch der. By C. Doeltner. Review by R. C. 
Wallace : : i : 4 2 : : : : ! 
Mineralogical Notes, Series 1 and 2. By Waldemar T. Schaller. 
Review by A. D. B. 5 : : é 
Mining World Index of Current eveeranne’ The. By Geo E. Sisley. 
Review by A. D. B. : é : é 
Moffit, Fred W., and Stephen R. Cane Crslensy andl Ore-Deposits of 
the Nizina District, Alaska. Review by E. A. S. 
Morgan, Percy Gates. The Geology of the Greymouth Sabdimicient 
North Westland, New Zealand. Review by E. A. S. : 
Mount McKinley Region, The. By Alfred H. Brooks and L. M. 
Prindle. Review by E. A. S. 
New Species from the Santa Lucia Mountains, California, with a Dis- 
cussion of the Jurassic Age of the Slates at Slate’s Springs. By 
Charles H. Davis pat eR ete aaa he pee oer! ala ee 
Niggli, Paul, and John Johnston. The General Principles Underlying 
Metamorphic Processes. Pt. I 
——. The General Principles Underlying Mewmorakie Processes 
Par, JUL : 
Nizina District, Alaska, Geoloey and One. Devestes ai che. By Bred W. 
Moffit and Stephen R. Capps. Review by E. A. S. 
Observations on the Feldspars. By Austin F. Rogers 
Old Erosion Surface in Idaho, The. By Joseph B. Umpleby 
“‘Order of Crystallization in Igneous Rocks, The.” By Victor Trenler 
Original Streams; and Their Réle in General Desert-Leveling. By 
Charles R. Keyes Heed gt Sekar 
Ornithodesmus latidens, The ekeleron a By R. W. Hooley. Review 
by S. W. Williston . 
Ostodolepis-Brevispinatus, A New Renate PO Te Biacntion iat Teel 
By S. W. Williston . eta 
Overthrust Fault in Nearly Flat SHEE, By G. Soman TRawers 
PAGE 
378 
376 
320 
569 
160 
465 
672 
672 
376 
573 
572 
453 
481 
588 
376 
202 
224 
I8t 
268 
754 
363 
534 
