﻿CONTENTS 
  

  

  PAGE 
  

  

  The 
  soukce 
  of 
  the 
  greatness 
  of 
  new 
  york 
  30 
  

  

  Introductory 
  statements 
  ....'. 
  30 
  

  

  ' 
  Favorable 
  natural 
  conditions 
  32 
  

  

  Artificial 
  modifications 
  33 
  

  

  Why 
  water 
  powers 
  are 
  less 
  reliable 
  now 
  than 
  formerly 
  33 
  

  

  The 
  variation 
  in 
  water 
  yield 
  38 
  

  

  Value 
  of 
  water 
  to 
  industries 
  39 
  

  

  The 
  relation 
  of 
  the 
  mountains 
  to 
  the 
  river 
  valleys 
  40 
  

  

  Rivers 
  and 
  lakes 
  of 
  the 
  Adirondack 
  plateau 
  44 
  

  

  The 
  great 
  forest 
  as 
  a 
  stream 
  conservator 
  45 
  

  

  Data 
  of 
  climate 
  in 
  new 
  york 
  46 
  

  

  The 
  division 
  of 
  the 
  State 
  into 
  climatic 
  areas 
  49 
  

  

  Description 
  of 
  meteorological 
  tables 
  52 
  

  

  Division 
  of 
  the 
  year 
  into 
  storage, 
  growing 
  and 
  replenishing 
  periods. 
  . 
  80 
  

  

  The 
  relation 
  of 
  rainfall 
  to 
  runoff 
  82 
  

  

  Rainfall 
  83 
  

  

  Cause 
  of 
  rainfall 
  83 
  

  

  Measurement 
  of 
  rainfall 
  84 
  

  

  Determination 
  of 
  minimum 
  rainfall 
  86 
  

  

  Is 
  rainfall 
  increasing? 
  87 
  

  

  Relation 
  of 
  rainfall 
  to 
  altitude 
  87 
  

  

  Increase 
  of 
  runoff 
  with 
  increase 
  of 
  rainfall 
  92 
  

  

  Genesee 
  river 
  92 
  

  

  Hudson 
  river 
  93 
  

  

  Croton 
  river 
  94 
  

  

  Average 
  rainfall 
  in 
  the 
  State 
  of 
  New 
  York 
  95 
  

  

  Length 
  of 
  time 
  required 
  to 
  make 
  good 
  a 
  series 
  of 
  rainfall 
  records 
  . 
  . 
  95 
  

  

  Minimum 
  precipitation 
  in 
  New 
  York 
  97 
  

  

  Runoff 
  105 
  

  

  The 
  laws 
  of 
  stream 
  flow 
  \ 
  105 
  

  

  Units 
  of 
  measurement 
  106 
  

  

  Characteristics 
  of 
  the 
  minimum 
  runoff 
  107 
  

  

  Division 
  of 
  streams 
  into 
  classes 
  , 
  108 
  

  

  Estimation 
  of 
  runoff 
  from 
  rainfall 
  diagrams 
  109 
  

  

  Storage 
  in 
  lakes 
  110 
  

  

  Seneca 
  basin 
  Ill 
  

  

  Oneida 
  basin 
  Ill 
  

  

  Oswego 
  basin 
  Ill 
  

  

  Computation 
  of 
  the 
  annual 
  runoff 
  113 
  

  

  Discrepancies 
  in 
  the 
  computation 
  of 
  runoff 
  113 
  

  

  Actual 
  gagings 
  preferable 
  to 
  general 
  studies 
  113 
  

  

  Formulas 
  for 
  runoff 
  115 
  

  

  Maximum 
  discharge 
  formulas 
  116 
  

  

  Coefficient 
  table 
  for 
  representative 
  areas 
  117 
  

  

  Cooley's 
  formulas 
  117 
  

  

  Danger 
  of 
  using 
  averages 
  118 
  

  

  