INDEX 



479 



Vernier, 436 

 Vise, 426 

 Volt, 172 

 Voltaic cell, 174 

 Voltmeter, 179 

 Volume, 



rules for finding, 18 



unit of, 8 



W 



Water, 

 gauge, 313 

 hammer, 463 

 hard, 135 

 heater, 318 



measurement of flowing, 77 

 meter, 463 

 needed to produce 1 cu. ft. of 



steam, 352 

 power wasted, 76 

 pressure, 69 

 properties of, 135 

 soft, 136 

 storage, of, 73 

 supply, 460-467 



lakes, 460 



relation to plumbing, 46u 



rivers, 460 



wells, 460 

 typical liquid, 68 

 weight of cu. ft. of, 69 

 works, city, 462 

 Water wheels, 

 overshot, 74, 75 

 Pelton wheel, 79 



turbine, 75 



undershot, 75 

 Watt, 173 



Watt, James, 24, 328 

 Wedge, 24, 44-45 



application of principle of, 44 

 Weights, 7-21 



atomic, 128 



defined, 10 



law of combined, 131 



metals per cu. in., 242 



molecular, 130 



of castings, 388 



of materials, 388 



relation to mass, 10 



source of power, 65 



table of, 12 



unit of, 8 

 Welding, 394 



autogenous, 396 



electric arc, 396 



oxyacetylene, 396 



processes, 395 



thermit, 397 

 Wheel and axle, 24, 38-41 



compared with pulley, 39 

 Wire, electric, 210 

 Work, 23 



measurement of, in heat units, 

 339 



measuring for machine, 419 

 Working drawing, 229 

 Wrought iron, 390-399 



case-hardening, 391 



characteristics of, 391 



drawing and rolling, 391 



manufacture of, 390 



