Contents. V 
The Cretaceous Exposure near Cliffw(m)d, N. J., Edzvard IV. 
Berry, [Plate XV] . . . ; 253 
Review of Recent Geological Literature. 
The occurrence and exploitation . of petroleum and natural 
gas in Ohio, /. A. Bozcnockcr, 261 ; United States Geological 
Map, Cottonwood Falls (Kans.) folio. No. 109, C. S. Prosscr 
and /. W. Bccde, 262; Radio-Activity, E. Rutherford 264 
Monthly Authors' Catalogue of American Geological Lit- 
erature 264 
Personal and Scientific News 267 
NOVEMBER NUMBER. 
The Echinodermata of the Missouri Silurian, and a New 
Brachiopod. R. R. Rozvlcy. [Plate XVI] 269 
Tectonic Geography of Eastern Asia, IV. W. H. Hobbs 283 
Submarine Great Canyon of the Hudson River, /. JV. Spencer 292 
Miocene Barnacles from Gay Head, Mass., with notes on 
Balanus Proteus Conrad. Joseph A. Cusliman. [Illustrated] 293 
The Theory of Copper Deposition. Alfred C. Lane. [Illustrated] 297 
The Untenableness of the Nebular Theory, IT. .V. Misfockles 310 
Editori.vl Comment. 
The Stone Reefs of Brazil 319 
Review of Recent Geological Literature. 
The Geology of the Watkins and Elmira Quadrangles, /. M. 
Clarke and D. D. Luther, 324 ; Geology and Water Resources 
of part of the Lower James river valley, /. E. Todd and C. M. 
Hall, 325 ; Glacial Waters from Oneida to Little Falls. H. L. 
Fairchild 326 
Monthly Authors' Catalogue of American Geological Lit- 
erature 2>-7 
Correspondence. 
Paleontologia Universalis. Charles Schuchert. 332 ; The Type 
of Aviculipecten, Geo. H. Girty 332 
Personal and Scientific News ;iT;$ 
DECEMBER NUMBER. 
The Waverly Formations of Central Ohio, Charles S. Prosscr 
and Edgar R. Cumings [Plates XVII-XIX] 336 
The Untenableness of the Nebular Theory, III, A''. Misfoclclcs 361 
Tectonic Geography of Eastern Asia. V.. IV H. Hobbs. . . . 371 
A Theory of Origin for the Michigan Gypsum Deposits.. G. 
P. Grimslcy 378 
Review of Recent Geological Literature. 
A Treatise on Metaniorphism, C. R. Ian Hise. 388: Volca- 
noes and Seismic Centers of the Philippine islands, ^L S. 
Maso, 391 ; Mount Stuart Folio, Washington, G. O. Smith. 
