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  F. 
  B. 
  Taylor 
  — 
  Niagara 
  and 
  the 
  Great 
  Takes. 
  

  

  which 
  relate 
  to 
  the 
  first 
  Lake 
  Algonquin. 
  So 
  far 
  as 
  they 
  go, 
  

   however, 
  the 
  latter 
  are 
  almost 
  as 
  good. 
  Only 
  the 
  southern 
  

   parts 
  of 
  the 
  Algonquin 
  beach 
  are 
  now 
  left, 
  those 
  at 
  the 
  north, 
  

   having 
  been 
  washed 
  over 
  and 
  obliterated 
  by 
  the 
  later 
  Warren 
  

   Gulf. 
  All 
  the 
  facts 
  now 
  known 
  relating 
  to 
  the 
  first 
  Lake 
  

   Algonquin 
  are 
  found 
  south 
  of 
  the 
  Petoskey 
  node 
  line. 
  

  

  In 
  the 
  Michigan 
  Basin. 
  — 
  The 
  history 
  of 
  Lake 
  Algonquin 
  

   in 
  this 
  basin' 
  was 
  very 
  simple 
  in 
  both 
  epochs. 
  More 
  than 
  half 
  

   of 
  the 
  deformation 
  which 
  is 
  found 
  in 
  the 
  Algonquin 
  beach 
  was 
  

   produced 
  by 
  the 
  great 
  Champlain 
  uplift 
  which 
  so 
  recently 
  

   deformed 
  the 
  much 
  younger 
  ISTipissing 
  beach. 
  

  

  As 
  nearly 
  as 
  I 
  have 
  been 
  able 
  to 
  determine, 
  the 
  node 
  line 
  of 
  

   the 
  Chippewa 
  and 
  Algonquin 
  planes 
  passes 
  east 
  and 
  west 
  

   through 
  Petoskey, 
  as 
  shown 
  on 
  the 
  map 
  by 
  the 
  line 
  AA. 
  

   North 
  of 
  this 
  line 
  the 
  highest 
  beach 
  throughout 
  is 
  the 
  marine 
  

   beach 
  of 
  Warren 
  Gulf 
  and 
  rises 
  rapidly 
  northward. 
  South 
  of 
  

   the 
  line 
  is 
  the 
  true 
  Algonquin 
  beach. 
  In 
  the 
  field 
  the 
  two 
  so 
  

   far 
  as 
  yet 
  observed 
  appear 
  to 
  be 
  physically 
  continuous 
  as 
  one 
  

   beach. 
  But 
  taking 
  the 
  plane 
  as 
  a 
  whole 
  there 
  is 
  a 
  decided 
  

   break 
  near 
  the 
  line 
  AA, 
  and 
  this 
  I 
  take 
  to 
  be 
  the 
  node. 
  This 
  

   break 
  in 
  the 
  plane 
  is 
  clear 
  on 
  both 
  shores 
  of 
  Lake 
  Michigan, 
  

   but 
  is 
  less 
  noticeable 
  in 
  the 
  highlands 
  east 
  of 
  Georgian 
  Bay. 
  

   Northward 
  from 
  Petoskey 
  the 
  Chippewa 
  beach 
  rises 
  to 
  

   Mackinac 
  about 
  three 
  feet 
  per 
  mile, 
  while 
  southward 
  from 
  

   the 
  same 
  place 
  the 
  Algonquin 
  beach 
  declines 
  about 
  seven 
  or 
  

   eight 
  inches 
  per 
  mile. 
  The 
  altitude 
  of 
  the 
  Algonquin 
  beach 
  

   at 
  Traverse 
  City 
  was 
  not 
  determined 
  accurately. 
  But 
  terraces 
  

   have 
  been 
  reported 
  at 
  Frankfort 
  on 
  the 
  Michigan 
  shore 
  farther 
  

   south, 
  corresponding 
  very 
  closely 
  to 
  the 
  extended 
  Algonquin 
  

   plane. 
  

  

  On 
  the 
  west 
  side 
  of 
  the 
  lake 
  the 
  Chippewa 
  beach 
  rises 
  north- 
  

   ward 
  from 
  Burnt 
  Bluff 
  to 
  Cook's 
  Mill 
  at 
  the 
  rate 
  of 
  about 
  two 
  

   and 
  one-third 
  feet 
  per 
  mile. 
  The 
  Algonquin 
  beach 
  was 
  found 
  

   to 
  pass 
  under 
  present 
  lake 
  level 
  at 
  Two 
  Rivers, 
  Wisconsin. 
  

   Southward 
  from 
  that 
  place 
  it 
  appears 
  as 
  submerged 
  terraces 
  

   off 
  shore 
  at 
  Manitowoc 
  and 
  Sheboygan. 
  Northward 
  from 
  Two 
  

   Rivers 
  it 
  was 
  found 
  at 
  Kewaunee, 
  Green 
  Bay, 
  Sturgeon 
  Bay, 
  

   and 
  Birch 
  Creek 
  north 
  of 
  Menominee. 
  Its 
  heights 
  at 
  all 
  these 
  

   places 
  fall 
  into 
  an 
  even 
  plane 
  which 
  rises 
  northward 
  eight 
  

   inches 
  per 
  mile. 
  If 
  this 
  plane 
  be 
  produced 
  northward 
  to 
  

   Cedar 
  river 
  on 
  the 
  west 
  shore 
  of 
  Green 
  Bay 
  about 
  25 
  miles 
  

   north 
  of 
  Menominee 
  its 
  altitude 
  at 
  that 
  place 
  would 
  be 
  about 
  

   60 
  feet 
  above 
  the 
  lake. 
  The 
  Nipissing 
  beach 
  is 
  calculated 
  to 
  

   pass 
  under 
  the 
  lake 
  at 
  about 
  the 
  same 
  place. 
  Hence 
  the 
  

   Algonquin 
  beach 
  is 
  there 
  about 
  60 
  feet 
  above 
  the 
  Nipissing. 
  

   Cedar 
  river 
  is 
  also 
  near 
  the 
  node 
  line 
  AA, 
  and 
  is 
  120 
  miles 
  

   straight 
  west 
  from 
  Petoskey. 
  At 
  Petoskey 
  the 
  Nipissing 
  

  

  