492 
Index 
Islands of the upper Lake Maumee level 238 
Isothermal maps of Ohio 193 
Johnson, Theodore S, 
comparative study of circular and rectangular Imhoff tanks.” 341 
Laphospira beatrice, sp. nov 310 
‘O^orraine faunas of New York and the province of Quebec.” By Aug. F. 
Foerste... 247 
Lepadocystis, Carpenter, generic characteristics 458 
Lepadocystinae, description of several 456 
Lepadocystis moori, diagram of 459, 461, 462, 464 
Lepadocystis moorei, Meek 459 
Lepidodiscus, aboral surface of 407 
Lepidodiscus and Agelacrinites, use of the generic terms 431 
Lepidodiscus, mobile marginal part of peripheral ring 407 
Lepidodiscus, rigid inner band of peripheral ring 408 
Leptaena gibbosa, James 116 
Leptaena richmondensis, Foerste. 117 
Leverett, Frank, referred to 232, 234 
Lingula Clochensis, sp. nov 253 
Lingula procteri-versaillesensis, var. nov 135 
Lingular rectilateralis, Emmons 254 
“Locust Grove esker, Ohio.” James D. Ihompson, Jr 395 
Lower Maumee shoreline 238 
Lyrodesma poststriatum, (Emmons) Hall 306 
Markets and urban density 189 
Maumee Bay 369 
“Method of subdividing the interior of a simply closed rectifiable curve with 
an application to Cauchy’s theorem.” By F. B. Wiley and G. A. Bliss 375 
Aliami-Erie canal 178, 370 
Millersburg, Ohio 390 
Modiolondon poststraitus, sp. nov 294 
Modiolopsis concentrica Hall and Whitfield 283 
Modiolopsis modiolaris, Conrad 281 
Modiolopsis postplicata, sp. nov 284 
Aloot’s Run (Ohio), detailed description of, and its tributaries 222 
Newark, Ohio 396 
Nixon, Harmon A. and Tight, Dexter J. “Drainage changes in the 
Moot’sRun area, Licking County, Ohio.” 219 
Ohio Canal 178 
Ohio, smaller cities .• 188 
“Ohio, Climate of.” By F. Carney 191 
Ohio eskers 395 
“Ohio-Michigan boundary line, geographic factors in the establishment of.” 
By Constance G. Eirich 368 
Ohio, north-western 183 
Orthoceras tyronensis, sp. nov 139 
Orthodesma approximaturm, sp. nov 285 
Orthodesma nasutum, Conrad 286 
