8 CONTENTS. 



Chapter IX. Morainic systems at heads of Lake Michigan and Saginaw basins — Continued. 



Charlotte morainic system of the Saginaw lobe — Continued. Page. 



Structure of the drift -. 206 



Outer border drainage 207 



Inner border 208 



General character 208 



Distribution of eskers 208 



Charlotte esker 209 



Mason esker 209 



Williamston-Dansville esker system 211 



Leroy Township esker 212 



Esker system of western Livingston and eastern Ingham counties 212 



Iosco esker 213 



Oak Grove-Howell-Chilson esker system 213 



Hartland esker 214 



Pseudo-eskers 214 



Valparaiso morainic system of the Lake Michigan lobe 214 



Course and distribution 215 



Topography 215 



Altitude 215 



Relief 216 



Character 216 



Structure of the drift 217 



Thickness : 217 



Composition 217 



Bowlders 218 



Outwash 218 



Drainage 219 



Chapter X. Later moraines of the Lake Michigan, Saginaw, and Huron-Erie lobes 222 



Lake border morainic system of Lake Michigan lobe, by Frank Leverett 222 



Course and distribution 222 



Topography 222 



Altitude 222 



Relief 223 



Character 223 



Structure of the drift 224 



Thickness 224 



Composition 224 



Glacial drainage 225 



Lines of discharge 225 



Glacial lakes 225 



Late glacial drainage 227 



Reentrant district between the Saginaw and Lake Michigan lobes, by Frank Leverett " 228 



Harrison-Lake City ridged belt ' 229 



Houghton Lake chain of ridges 229 



Higgins Lake system of ridges 230 



Ridges south of Au Sable and Manistee valleys 230 



Ridges at headwaters of Au Sable and Manistee rivers 231 



West Branch-Gladwin group of moraines of the western limb of the Saginaw lobe, by Frank Leverett 232 



General features and distribution 232 



Topography 233 



Altitude ■ 233 



Relief 233 



Character 234 



Structure of the drift 234 



Outer border 236 



Glacial drainage 237 



Moraines of the eastern limb of the Saginaw lobe, by F. B. Taylor ' 238 



Distribution 238 



General features 238 



Lansing moraine 239 



Grand Ledge moraine 240 



Ionia moraine 240 



Portland moraine 240 



