NUMBER IV. 



Editorial - 



Reviews : Department of Geology and Natural Resources of Indiana, Twenty- 

 fifth Annual Report, by W. S. Blatchley, State Geologist (C. E. Sieben- 

 thal), 354 ; Summary Report of the Geological Survey Department [of 

 Canada] for the year 1900 (C), 357 ; Aus den Hochregionen des Kau- 

 kassus, by Gottfried Merzbacher (J. P. I.), 359 ; The Geological History 

 of the Rivers of East Yorkshire, by F. R. Cowper Reed (T. C. C), 360 ; 

 The Conveyance of Water in Irrigation Canals, Flumes, and Pipes, 



PAGE 



iv CONTENTS OF VOLUME IX 



NUMBER III. 



p HE Classification of [-he Waverly Series of Central Ohio. Charles 



S. Prosser ------------ 205 



The Use of Bedford as a Formational Name. Edgar R. Cumings - 232 

 On the Use of the Term "Bedford Limestone." C. E. Siebenthal - 234 



Nitrates in Cave Earths. Henry W. Nichols 236 



Derivation of the Terrestrial Spheroid from the Rhombic Dodec- 

 ahedron. Charles R. Keyes - - - - - - - 244 



The Variations of Glaciers. VI. Harry Fielding Reid. - - - 250 

 Prodromites, a New Ammonite Genus from the Lower Carbonif- 

 erous. James Perrin Smith and Stuart Weller ----- 255 



Editorial -_..-.- 267 



Reviews: The Norwegian North Polar Expedition, 1893-1896: Scientific 

 Results, Vol. II, edited by Fridtjof Nansen (T. C. C), 273 ; Meteoro- 

 logical Observations of the Second Wellman Expedition, by Evelyn B. 

 Baldwin, Observer, Weather Bureau ; Report of the Chief of the Weather 

 Bureau, United States Department of Agriculture, 1899-1900, Part VII 

 (T. C. C), 276 ; The Oriskany Fauna of the Becraft Mountain, Colum- 

 bia County, N. Y., by J. M. Clark (S. W.), 278. 

 Recent Publications ---------.- 280 



Glacial and Interglacial Beds Near Toronto. A. P. Coleman - - 285 

 Portable Representatives of Pre-Wisconsin Till in Southeastern 



Massachusetts. Myron L. Fuller ------- ^u 



Sketch of the Geology of the Salinas Valley, California. Edward 



Hoit Nutter ------._._•. 330 



Notes on the Fossils from the Kansas-Oklahoma Red-Beds. Charles 



Newton Gould ----------- ^37 



Illustrated Note on a Miniature Overthrust Fault and Anticline. 



A. H. Purdue ---......_. -^j 



The Morrison Formation of Southeastern Colorado. Willis T. Lee - 343 



353 



