Index ' 7 



Page 



Hebertella alveata-richmondensis 55 



Hebertella occidentalis, Hall 53 



Hebertella sinuata, Hall 52 



Hebertella subjugata, Hall 54 



Hocking river 399 



Huron river 395 



Immigration routes to Ohio 126 



Iron in Ohio 139 



Iroquois Confederacy 408 



Labechia (?) corrugata, sp. nov 86 



Lake Erie drainage 392 



Lake Erie, origin of 217 



La Salle 406 



Leptaena tenuistriata, Sowerby 45 



Leptobolus lepis-clif tonensis, var. nov 21 



Lime in Ohio and its uses 155 



Lingula covingtonensis, Hall and Whitfield 22 



Lingula modesta, Ulrioh 22 



Lingula waynesboroensis, sp. nov 23 



Little Beaver river 400 



Little Miami river 397 



Lower Maimiee stage of Maumee shoreline 103 



Mahoning river 400 



Mark, Clara Gould, The Mercer limestone and its associated rocks in 



the Newark-Zanesville region 267 



Maumee river 396 



Mercer limestone and its associated rocks in the Newark-Zanesville region. 267 



Metamorphism 372 



Metamorphism of glacial sediments of Pleistocene period in central New 



York and northern and central Ohio 1 



Miami canal 128 



Mississippian in Ohio 378 



Mohawk route to Ohio 404 



Muskingum river 399 



National Road through Ohio 134 



Natural gas in Ohio 158 



Nebular hypothesis of LaPlace 368 



Northwest Territory 420 



Oberlin Quadrangle, Ohio, abandoned shorelines of 101 



Ocean sediments 368 



Ohio canal 128 



Ohio, physiographic regions 384 



Ohio river, development of 392 



Ohio river drainage 396 



Oil and gas, origin of 167 



Oil in Ohio, early history 162 



Opisthoptera concordensis, sp. nov 70 



