﻿REPORT 
  OF 
  THE 
  DIRECTOR 
  r59 
  

  

  CONTENTS 
  

  

  Introduction 
  /,- 
  

  

  . 
  r65 
  

  

  Preliminaiy 
  considerations 
  nn 
  

  

  Topography 
  of 
  the 
  Finger-lake 
  region 
  j.qq 
  

  

  The 
  direction 
  of 
  flow 
  of 
  the 
  streams 
  occupying 
  the 
  valleys 
  

  

  of 
  Lakes 
  Cayuga 
  and 
  Seneca 
  in 
  preglacial 
  times 
  r68 
  

  

  Classification 
  of 
  lacustrine 
  deposits 
  ^YO 
  

  

  Berg 
  deposits 
  ^.^^ 
  

  

  Lacustrine 
  clays 
  and 
  silts 
  p^^q 
  

  

  Location 
  and 
  description 
  of 
  the 
  valley 
  divides 
  and 
  overflow 
  

  

  channels 
  ^-, 
  

  

  r71 
  

  

  Spencer 
  summit 
  outlet 
  ^.^2 
  

  

  White 
  Church 
  outlet 
  ^^o 
  

  

  Horseheads 
  outlet 
  y^o 
  

  

  The 
  shore 
  features 
  in 
  the 
  Finger-lake 
  valleys 
  ^7$ 
  

  

  Constructional 
  shorelines 
  ^.n^ 
  

  

  Destruction 
  al 
  shorelines 
  of 
  wave-cut 
  origin 
  . 
  / 
  r76 
  

  

  Terraces 
  of 
  differential 
  degradation 
  r76 
  

  

  Statement 
  of 
  the 
  possibilities 
  j.^^ 
  

  

  Discussion 
  of 
  the 
  hypotheses 
  ^yg 
  

  

  The 
  morainal 
  terrace 
  hypothesis 
  r78 
  

  

  The 
  marginal 
  lake 
  hypothesis 
  , 
  p80 
  

  

  The 
  general 
  lake 
  hypothesis 
  j.33 
  

  

  Evidences 
  of 
  ice 
  withdrawal 
  as 
  manifested 
  in 
  the 
  

  

  moraines 
  ^oo 
  

  

  Evidence 
  supporting 
  the 
  general 
  lake 
  hypothesis 
  ... 
  r84 
  

   Terminology 
  , 
  ^g^ 
  

  

  The 
  West 
  Danby 
  lake 
  stage 
  j.85 
  

  

  Markings 
  of 
  lake 
  level 
  p85 
  

  

  Evidence 
  and 
  history 
  of 
  lake 
  , 
  ^35 
  

  

  The 
  Brookton 
  lake 
  stage 
  j.g^ 
  

  

  Markings 
  of 
  lake 
  level 
  p37 
  

  

  Evidence 
  and 
  history 
  of 
  lake 
  rST 
  

  

  The 
  Watkins 
  lake 
  stage 
  pgg 
  

  

  Markings 
  of 
  lake 
  level 
  pgg 
  

  

  Evidence 
  and 
  history 
  of 
  lake 
  rSS 
  

  

  