LIST OF ILLUSTRATIOXS. xix 



96. Drainage map of southeastern Iowa. (Leverett.) 318 



97. Cress-section of the Osage trough at Tuscumbia, Mo 318 



9S. Map showing glaciated and unglaciated portions of Missouri .... 322 



99. Glacial terrace, Granville, Ohio 323 



100. Map of South Dakota showing the channel of the Missouri River . . 335 



101. Maps of kames in eastern Masschusetts 33S 



102. Section of kame, Dover, X. H. (Upham.) 340 



103. Sections of kame, Bennington Station, N. H 341 



104. Map of the kames of Maine. (Stone.). 344 



105. Section of buried kame, Hanover, N. H. (Upham.) 345 



106. Section of kame, Hanover, X. H. (Upham.) 346 



107. Buried kame, Stroudsburg, Pa. (Lewis and Wright.) 348 



108. Canadian bowlder, Boone county, Ky. 36S 



109. Map showing the effect of the glacial dam at Cincinnati. (Clay pole.) . . 369 



110. Map of Paint Creek and Beech Flats, Ohio 373 



111. Section of a deposit, Teazes Valley, \Y. Va. 380 



112. Split Rock, Boone county, Ky 385 



112a. Glacial map of Lake Cuyahoga. (Claypole.) 388 



113. Section of the lake ridges near Sandusky, Ohio 390 



114. Map showing glacial lakelets in northern Ohio. (Claypole.) .... 396 



115. Lake Whittlesey. (Leverett.) 399 



116. Lake Warren. (Leverett.) 399 



117. Xipissing Great Lakes and Champlain Sea 399 



118. Map of glacial lake, Erie-Ontario. (Claypole.) 400 



119. Stratified loess, Xebraska. (Chamberlin.) 411 



120. Gulley in the loess, Helena, Ark. (Crider.) .421 



121. Polar projections 423 



122. Map showing glaciated areas in Xorth America and Europe . . facing 445 



123. Glacial map of Europe 456 



124. Contorted drift of the Cromer ridge 458 



124a. Present and past glaciation of the Alps. (Leverett.) 460 



125. Diagram showing eccentricity of the earth's orbit ...... 466 



126. Map showing Atlantic Ocean currents 470 



127. Map of July isobars and prevailing winds 471 



128. Map of January isobars and prevailing winds ....... 474 



129. Glaciated pebble. (Coleman.) 493 



130. Glaciated Pebble. (Coleman.) 493 



131. Glaciated Pleistocene surface. (Coleman.) 493 



132. Bird's eye view of Xiagara River. (Pohlman.) 535 



133. Section of strata along the Xiagara gorge . 537 



134. Map of the Xiagara River below the falls 538 



135. Map showing recession of Horseshoe Falls since 1842 540 



136. Exposure of Xiagara shale in Xiagara gorge. (Dutton.) .... 544 



137. Diagram of mouth of Xiagara gorge at Lewlston 544 



138. Photograph looking northwest towards St. Davids 546 



139. Section showing enlargement of Xiagara gorge on east side at Its mouth . 546 



140. Hypothetic hydrography of the Great Lakes after the melting of the glacier from 



the St. Lawrence Valley .......... 547 



141. Sections showing the actual rate of erosion along the sides of the Xiagara 



gorge 551 



. 555 

 . 562 

 . 563 

 . 564 

 . 564 

 . 572 



142. Map of Mississippi River from Fort Snelling to Minneapolis 



143. Ideal view of an unglaciated country. (Chamberlin.) 

 141. Ideal view of glaciated country. fChamberlin.) 



145. Meanderings of Plum Creek through 5,000 feet of its trough 



146. Cross section of the new course of Plum Creek . 



147. Section of kettle-hole, Andover, Mass 



