Ti Contents. 
Correspondence. 
Sketch of Dr. Frenzel, Pcrsifor Fraser 332 
Personal and Scientific News 336 
DECEMBER NUMBER. 
New Bryozoa from the Coal Measures of Nebraska. G. B. 
Condra. [Plates XVIII-XXV.] 337 
The Cincinnati Anticline in Southern Kentucky. A. F. 
Foerste. [Plate XXVI.] 359 
On some Jurassic Fossils from Durango. D. W. Johnson. . . . 370 
Description of a New Species of Cladodus (C. formosus) from 
the Devonian of Colorado. O. P. Hay 373 
•Concrete Examples from the Topography of Howard County, 
Iowa. S.Calvin. [Plate XXVIL] 375 
■Geest. W. J. McGce 381 
Review of Recent Geological Literature. 
United States Geological Survey, Twenty-first Annual Re- 
port 384 
The Evolution of the Northern Part of the Lowlands of 
Southeastern Missouri. C. F. Marbut 3^7 
Mineral Resources of South Dakota. C. C- O'Harra and /. 
E. Todd 3RS 
Martinique and St. Vincent. E. O. Hovey 388 
Syllabus of a Course of Lectures in Elementary Geology. /. 
C. Branner 389 
Bidrag till Karmedomen om Trilobiternas Byggnad. /. C. 
Moberg 390 
Animals before Man in North America, Their Lives and Their 
Times. Frederic A. Lucas 390 
Monthly Author's Catalogue of Recent Geological Liter.\- 
TURE 301 
Correspondence. 
Additions to the List of Nicaragua Volcanic Eruptions in 
Historic Time. /. Crawford 3Q4 
Work of the Cornell Summer School of Field Geology. Chas. 
E. Smith 396 
Personal and Scientific News .' 30*^ 
Index 40 1 
Errata for Volume XXIX. 
Page 137, third line, for "Upper Huronian" read upper Turonian. 
Errata for Volume XXX. 
Page 60, sixth line from the bottom for "volume" read number. 
Page 90, after the first line add the words: should stand as valid. 
Page 116, fourteenth line from the bottom, for "cource read source. 
Page 190, fourth line, for "feet" read inches. 
