HYDROLOGY OF THE 



STATE OP NEW YORK 



899 



tributaries, 252 ; tributaries of 

 tidal portion, 468. 



Indian, cost of storage, 271; 

 dam, 270. 



Mohawk, cavities in limestone, 

 166; distance to headwaters of 

 tributaries, 478; division at 

 Little Falls, 482; principal 

 falls, 272; titles to lands de- 

 rived from laws of Holland, 

 531 ; effect of temporary pon- 

 dage, 479; tributaries, 252, 271. 



Muskingum, low water periods. 

 127. - 



Niagara, developments affecting. 

 292 ; discharge measurements, 

 313. 



Oswego, computed runoff for cer- 

 tain years, 153. 



Raquette, complete regulation 

 possible, 425; fall, 666; power 

 development, 666. 



Sacandaga, direction of flow, 267 ; 

 fall at Conklinville, 268. 



St Lawrence, electrical develop- 

 ment, 658; high water, 322; 

 Long Sault rapids, 243; low 

 water, 322 ; difficult navigation, 

 794 ; power development, 657 ; 

 present development, 659. 



Salmon river west, proportion of 

 catchment in forest, 219; pro- 

 posed water supply for Syra- 

 cuse, 219. 



Saranac, fall and length, 248. 



Schroon, direction of flow, 269 ; 

 water yield, 400. 



Seneca, canal along, 344; manu- 

 factoring on, 538. 



Susquehanna, deforested area. 

 486 ; slope, 284 ; water yield, 287. 



Tiber, Italy, canal at mouth, 424 ; 

 not suited for water storage, 

 424 ; river conservancy commis- 

 sion, 425. 



Wallkill, capacity of reservoir, 

 698; cost of reservoir, 700; de- 

 scription, 697; objections to 

 reservoir, 699; soil of reservoir 

 bottom, 702 ; water yield, 688. 



Roberts, Louis, 869. 



Rochester, dams, 605 ; discharge 

 through conduit of waterworks, 

 338 ; falls, 606 ; permanent power, 

 611 ; raceways, 607 ; subdivision 

 of water power among raceways, 

 607 ; steam power in use, 214 ; use 

 of soft coal, 588. 



Rochester and Brush Electric Light 

 Co., 858. 



Rochester, Carroll and Fitzhugh 

 race, 858. 



Rochester Chamber of Commerce, 

 569, 574. 



Rochester Water Supply Co., 847. 



Roosevelt, Theodore, 742, 796. 



Royal Electric Co., 357. 



Runoff, amount, 202; constant rela- 

 tion to rainfall, 164; Dickens's 

 formula, 116; erroneously esti- 

 mated, 324; effect of forests, 

 178 ; exponential formulas, 197 ; 

 formula, how derived. 110 ; no 

 general formula, 82 ; Ryves's 

 formula, 116 ; gradually de- 

 creasing, 33 ; influence of lakes, 

 110; method of estimating ac- 

 curacy, 197 ; universally over- 

 estimated. 113 ; proportionate 

 part of rainfall. 119 ; rainfall to 

 produce any at all. 164; rela- 

 tion in Maine to catchment, 

 126; relations to ground water, 

 203 ; summer months in New 

 Jersey, 164; summer months in 

 New York, 164; variation for 

 different soils, 162 ; variation in 

 proportion to size of catchment, 

 126. 



Canadaway creek, 493. 



Croton river, 189, 378. 



Eaton brook, 420, 421. 



Fish creek, east branch, 616. 



Genesee river, 39, 108, 189, 308. 



Great lakes, 311, 315, 316, 321. 



Hemlock lak:\ 33$ 498; compared 

 with Thames river, 340. 



Hudson river, 107, 189; com- 

 pared with Genesee river, 591. 



Loup river, Neb., 109. 



