IV Contents. 
opment, organization and operations, H. C. Rizer, 119; Cata- 
logue of the Ward-Coonley collection of meteorites, Henry 
A. Ward. 120; The traces of the mountain building process in 
the Coasits of the Don River in southeastern Russia, Alex- 
ander IV. Pavloiv. 121 ; Notes on a section across the Sierra 
Madre occidental of Chihuahua and Sinaloa, Mexico, W. H. 
Weed, 121 ; Harriman Alaska expedition, vol. iv, Geology and 
Paleomtologj^ B. K. Emerson, Charles Palachc, William H. 
Dall, E. O. Ulrich, F. H. Knozvlton 122 
Monthly Authors' Catalogue of American Geological Lit- 
erature 125 
Personal and Scientific News 131 
SEPTEMBER NUMBER. 
The Orbicular Gabbro of Dehesa, California, H. H. Kcssler 
and W. R. Hamilton. [Plates VI-X] 133 
Tectonic Geography of Eastern Asia. II. W. H. Hubbs 141 
Outer Glacial Drift in the Dakotas, Montana. Idaho and 
Washington. Warren Upham 151 
Bolson Plains and the Conditions of Their Existence. C. R. 
Keyes 160 
The Alkali Deposits of Wyoming. T. T. Read 164 
Notes on the Pleistocene Fauna of Sankaty Head, Nan- 
tucket. Mass. J. A. Cushman 169 
Lake Otero, an Ancient Salt Lake Basin in Southeastern 
New Mexico. C. L. Herrick. [Plate XI] 174 
Editorial Comment. 
The colossal Bridges of Utah 189 
Review of Recent Geological Literature. 
Faune Cambrienne du Haut-Alemtejo, /. F. N. Delgado, 192: 
North America, /. C. Russell, 193 ; Index to the mineral re- 
sources of Alabama, E. A. Smith and Henry McCalley. 195 : 
The Glaciers of Alaska, Geo. Davidson. [Plate XII], 195: 
Dodge's Elementary Geograph}% R. E. Dodge 197 
Monthly Authors' Catalogue of American Geological Lit- 
erature 198 
■ Correspondence. 
The Type of Aviculipecten, Jl' heel ton Hind 200 
Personal and Scientific News 201 
OCTOBER NUMBER. 
CiLACIAL AND MODIFIED DrIFT IN AND NEAR SEATTLE. TaCOMA AND 
Olympia. Jl'arren I'pham. [Pla.te XIII] 203 
Tectonic Geography of Eastern Asia. III. Japan, ff. //. 
Hobbs. [Plate XIV] 214 
The Untenableness of the Nebular Theory. .V. Mistockles. . 226 
The Baraboo Iron Ore. N. H. Winchell 242 
