12 CONTENTS. 



Chapter XII. Outline of glacial and postglacial history of the Great Lakes region — Continued. 

 Glacial history of the Great Lakes basins — Continued. 



Great Lakes during and after the retreat of the last ice sheet — Continued. Page. 



Glacial lakes in the Huron-Erie-Ontario basin 323 



Lake Arkona 323 



Lake Whittlesey 323 



Lake Wayne 323 



Lake Warren 324 



Lake Lundy (Lake Dana, Lake Elkton) 324 



Glacial lakes in the Lake Ontario basin .- 325 



Early lakes 325 



Lake Newberry 325 



Lake Hall.....' 325 



Lake Vanuxem 325 



Lake Dawson 325 



Lake Iroquois 325 



Lake Frontenac 325 



Gilbert Gulf 326 



Glacial lakes in the Lake Michigan basin 326 



Lake Chicago : 326 



Lakes in the Green Bay region 327 



Glacial lakes in the Lake Superior basin 327 



Early lakes 327 



Lake Duluth ■ 328 



Glacial lakes in the Superior-Michigan-Huron basin 328 



Lake Algonquin 328 



Postglacial history of the Great Lakes region 331 



Postglacial lakes 331 



Nipissing Great Lakes ' 331 



Post-Nipissing -Great Lakes 332 



Lake Erie 332 



Present stability of the land 333 



Postglacial marine waters in the Ottawa and St. Lawrence valleys and in the Lake Ontario basin 333 



Chapter XIII. Glacial Lake Maumee, by F. B. Taylor 334 



Early investigations 334 



Distribution of Maumee beaches 334 



Characteristics of lowest beach and related deltas 335 



Topography of the beaches 336 



Altitude 336 



Ice ramparts 337 



Kamparts on modern lakes 337 



Ramparts on Lake Maumee 338 



Interpretation • 338 



Distribution and character 338 



Formation 340 



Other glacial ramparts 341 



Deformation of water plane by ice attraction _• 342 



Theoretical considerations 342 



Area of horizontality 342 



Deformation at or near the edge of the ice 343 



Deformation between Columbus Grove and Findlay 343 



Deformation. east of Defiance moraine 346 



Deformation in Fort Wayne district 346 



Attraction at moderate distances from the ice -. 346 



Relation of Maumee beaches to moraines and outlets near Imlay, Mich 348 



Ice barriers of Lake Maumee : 349 



Correlatives of Lake Maumee 349 



Chapter XIV. Glacial Lake Chicago, by Frank Leverett 350 



Early investigations 350 



Distribution of beaches 350 



Glenwood beach 350 



General distribution 350 



South end of basin 351 



