﻿HYDROLOGY 
  OF 
  NEW 
  YORK 
  

  

  345 
  

  

  which 
  is 
  deep 
  and 
  without 
  current, 
  admits 
  of 
  slack-water 
  naviga- 
  

   tion, 
  forming 
  a 
  part 
  of 
  Osw 
  T 
  ego 
  canal. 
  This 
  canal 
  enters 
  at 
  Mud 
  

   lock, 
  five 
  miles 
  below 
  Baldwinsville. 
  There 
  is 
  also 
  a 
  towpath 
  

   along 
  Seneca 
  river, 
  admitting 
  of 
  the 
  passage 
  of 
  boats 
  through 
  a 
  

   lock 
  into 
  and 
  above 
  the 
  dam 
  at 
  Baldwinsville. 
  The 
  Baldwins- 
  

   ville 
  pond 
  is 
  navigable 
  for 
  a 
  few 
  miles. 
  

  

  Water 
  is 
  diverted 
  at 
  Baldwinsville 
  through 
  power 
  canals. 
  

   Power 
  is 
  used 
  at 
  ten 
  mills, 
  having 
  a 
  total 
  of 
  forty 
  water 
  wheels. 
  

   Owing 
  to 
  leakage 
  of 
  the 
  water 
  wheels 
  and 
  penstocks, 
  some 
  diffi- 
  

   •culty 
  has 
  been 
  experienced 
  in 
  securing 
  accurate 
  results 
  during 
  

   low 
  water 
  at 
  Baldwinsville, 
  but 
  in 
  1901 
  repairs 
  were 
  made 
  to 
  a 
  

   number 
  of 
  penstocks 
  and 
  water 
  wheels, 
  considerably 
  reducing 
  the 
  

   leakage. 
  When 
  this 
  station 
  was 
  originally 
  established 
  the 
  leak- 
  

   age 
  was 
  taken 
  at 
  100 
  cubic 
  feet 
  per 
  second. 
  This 
  quantity 
  was 
  

   added 
  to 
  the 
  computed 
  flow 
  over 
  the 
  dam 
  and 
  through 
  the 
  water 
  

   wheels 
  

   river 
  at 
  Baldwinsville: 
  

  

  The 
  following 
  cut 
  shows 
  a 
  section 
  of 
  the 
  dam 
  on 
  Seneca 
  

  

  Fig. 
  23 
  Cross-section 
  of 
  darn 
  on 
  Seneca 
  river 
  at 
  Baldwinsville. 
  

  

  Geologically 
  the 
  Seneca 
  river 
  lies 
  in 
  the 
  horizon 
  of 
  the 
  Salina 
  

   group, 
  with 
  its 
  tributaries 
  to 
  the 
  south 
  rising 
  into 
  the 
  lower 
  and 
  

   upper 
  Helderberg 
  and 
  Hamilton 
  shales. 
  The 
  extreme 
  headwaters 
  

   are 
  in 
  the 
  Portage 
  and 
  Chemung 
  groups. 
  

  

  Discharge 
  measurements 
  of 
  Skaneateles 
  outlet. 
  The 
  measure- 
  

   ments 
  of 
  the 
  runoff 
  of 
  Skaneateles 
  lake, 
  as 
  given 
  in 
  table 
  No. 
  53, 
  

   have 
  been 
  made 
  by 
  the 
  Syracuse 
  Waterworks 
  over 
  a 
  dam 
  at 
  the 
  

   foot 
  of 
  the 
  lake, 
  or 
  over 
  a 
  weir 
  a 
  short 
  distance 
  below, 
  since 
  Octo- 
  

   ber, 
  1890, 
  but 
  the 
  record 
  is 
  only 
  given 
  from 
  March, 
  1895. 
  

  

  