INDEX 



813 



v. 



VALLOT, 222 



Valves, losses due to, &c., 249 



pump, 591 



reducing, 273 



relief, 521, 723 

 Van Iterson, 221 

 Vanes, turbine, curvature of, 552 



effect of thickness, 550 



Velocity critical, 51, 297 



of approach, 120, 142 



of flow in open channels, 343 



mean in pipe, 213 



in open channel, 337 



mid depth, in open channel, 342 

 Vena contracta, 102 

 Venturi, 2 



meter, 81, 734 

 Vessel, change of level around, 328 

 Victor turbines, 512 

 "Viper," 407 

 Viscosity, 11 

 Viscous flow, 58 

 Volute chamber, 633 

 Vortex chamber, 634 



compound, 98 

 forced, 96 

 free cylindrical, 96 

 free spiral, 97 

 motion, 95 

 Vortices, 46 



W. 



WATER, adhesion of, 5 

 ,, bulk, modulus of, 3 

 cohesion of, 5 

 compressibility of, 

 density of, 3 



Water hammer, 232 



hoisting from mines, 682 

 meters, 727 

 ,, Deacon, 734 



inferential, 730 



low pressure, 7*o 



,, >, positive reciprocati Dg, 733 

 ,, rotary, 731 



meters, Venturi, 81, 734 

 physical properties of, 2 

 powers, utilization of, 422 

 ram, 232 

 viscosity of, 11 

 weight of, 3 

 wheels, 422 

 breast, 431 



,. overshot, 426 



Pelton, 439 



Poncelet, 435 



Sagebien, 432 



,, undershot, 434 



"Waterwitch,"407 

 Wave-making resistance, 395 

 Waves of oscillation, 416 

 translation, 414 

 velocity of, 415, 417 

 standing, 312, 314 

 Weirs, broad-crested, 159 

 ., Cippoletti, 156 

 curved, 147 

 rectangular, 138 

 ., submerged, 157 

 trapezoidal, 155 

 triangular, 151 



,, use of as measuring appliance, 168 

 Weisbach, 2, 197, 252 

 Whirlpool chamber, 634, 654 

 White, Sir W., 396 

 Williams, G. S., 162, 213, 220, 253, 297 



I 



THE WH1TEFRIARS PRESS, LTD., LONDON AND TONBRIDOB. 



