LETTER LEWIS 165 



Page 

 Letter from Warreu I'pliain on records of Lake Agassiz and Ontario, 



Canada 28, 146 



Levebett, Frank ; Beginnings of Lalve Agassiz 24, 71, 097 



— cited on fossiliferous beds of Wliirlpool drift and Scarboro Heights. 21, -tOO 

 glacial formations and drainage features of the Erie and Ohio 



basin 21, 238 



• — glacial time 29,244 



— Lake Michigan beaches 29, 235, 237 



Maumee beach deCorniation 27, 238, 239 



— so-called lowan glaciation contemporaneous with Illinoisan. . . 26,108 



• — the beach of lake Warren 21, 239 



Illinois glacial lobe 21, 237 ; 26, 70 



— — — till overlying Birds Hill esker gravel and sand 21, 414 



— , Discussion of Appalncliian peneplains by 28, 128 



— • — • — coastal subsidence by 25, 62 



glacial deposits in Ontario by 25, 72 



— James Bay uplift by 29, 70 



— loess by 29, 73 



method of measuring post-Glacial time by 28, 141 



• — Nebraskan and Kansan drifts y 23, 45, 735 



Pleistocene deposits by 29, 78 



records of Lake Agassiz and Ontario, Canada, by 28, 146 



— ; Earth-movements in the Minnesota portion of the Lake Agassiz basin 



during and since the lake occupancy 25, 34 



— , Glacial cirques discussed by 24, 51, 678 



formations in the western United States 28, 143 



investigations in Minnesota in 1911 23, 46, 732 



the Lake Superior region in 1909 21, 21, 762 



— — lakes of Saginaw Basin in relation to uplift 29, 75 



— , "Hinge line" suggested by 21, 239 



— ; The lowan drift 24, 71, 698 



— , Piedmont terraces and post-Jurassic history of the northern Appa- 

 lachians discussed by 24, 70 



— ; Pleistocene deposits of Minnesota and adjacent districts 27, 68 



• formations and "loess" discussed by 23, 48, 739 



— • — succession in Wisconsin, by Sanuiel Weidman, presented by 24,71 



— , Post-Glacial earth movements discussed by 24, 74 



erosion and oxidation discussed l)y 23, 47, 738 



— quoted on departed from horizontality in Michigan 31, 241 



uplift of Lake Erie beaches 21, 238 



— , Reference to weathered zones and till sheets described by 21, 631 



— ; Remarkable deformation of the Algon(iuin Beach 24, 71, 697 



— , Remarks on Kansan drift by 27, 110 



Levy, Auguste Michel, cited on experimental geology 29, 175 



— , Memoir of, by Alexander N. Winchell 23, 32 



— , Reference to 21, 114 



Lewis, ElIx\s, Jr., cited on geology of Long Island 28, 282 



Lewis, J. V., cited on New Jersey trap sheet 25, 624 



