INDEX TO VOLUME XXIX FSI 
PAGE 
Crystallization and Magmatic Differentiation of Igneous Rocks, The 
Physical Chemistry of the. By J. H. L. Vogt . 5 | Bile, AAO, Bis, OaG 
Cycle of Glaciation, Studies of the. By William Herbert Hobbs. . 370 
Cycles of Erosion in the Piedmont Province of Pennsylvania. By F. 
Bascom : : : ‘ : : : : : ‘ : a ASO 
Dake, C.L. The Sand and Gravel Resources of Missouri. Review by 
REEDS S... 5 3 : 5 3 go 
Darton, N. H. Geologic Reconranhestines 4 in nBare Galltinanta nate mami 2X) 
Davison, Charles. Volcanic Earthquakes. .  . 97 
Description and Naming of Sedimentary Rocks, Supmentions® as for ah. 
Biv Aen elaiey eur: : O50 
Descriptive Mineralogy. By W. S. Barley Review opr 1D i, im, J BGS 
Devonian of Western Tennessee, The Stratigraphy and Correlation of 
the. By CarlO. Dunbar. Review by R. A.J.  . 389 
Diastrophism and the Formative Processes. XIV. Cronadwiaok foe 
the Study of Megadiastrophism. Part I. Summary Statement 
of the Groundwork Already Laid. Thomas C. Chamberlin . 2 BOR 
Part II. The Intimations of Shell Deformation. Rollin T. 
Chamberlin : ; 416 
XV. The Self-Compression of the Farth as a Problem 6 Gasoer 
sien Can @hramaberiine : MARRS ea iis ie : e070 
Diffusion in Silicate Melts. By N. L. Bowen US 1 ey ie fn Cae att Rae 2G 
Diplocaulus, A New Form of. By M.G. Mehl. .. ew ua AS 
Discussion of ‘‘Summaries of Pre-Cambrian Literature of North 
America,” by Edward Steidtmann. By Terence T. Quirke. . 469 
Dunbar, CarlO. The Stratigraphy and Correlation of the Devonian of 
Western Tennessee. Review by R.A. J. . ‘ : : ‘ 5 BSC) 
Hanshieuakess volcanics. By, Charles Davison). 2 800). ae 07 
Editorial Note. . 87 
Emmons, William Harvey. Geolony at Berroleumn: Review by 
1B), Do. Bae AAO ih Ulan ee es eee Mone Tm HRS a) C4 Wire niga obra We aL(O)N 
Escher, Dr. B. G. Atollen in den Nederlandsch-Oost-Indischen 
Archipel. De Riffen in de Groep der Toekang Besi-Eilanden. 
(Atolls in the Dutch East Indies.) Review by W.M.D. . EA S2 
Examples of Squeezing Differentiation from Northern Norway. By 
Stemar Koshie 7 ; ; 701 
Extracts from “The Mining Handbook i Grolereal ISuevey af Western 
Australia, “ IRGnen lel Spleen a Po Bee Ra 807 
Features of a Body of Anorthosite-Gabbro in Northern New York. 
By Walliame |i. Miller 7) 3". PA ORE Oa Fog. MO CN A 29 
Feldspars, The iltiere Hosea iey7 of he: Part I. By Harold L. Alling 
