INDEX. 



W 



Wagon springs, Advantages of 17 



" wheels, Proper width for 87 



Warner's Eevolving Ealce 169 



Washing Machine 72 



Water, Remarliable effects of heat 



on , 279. 



Water, Velocity of 211, 213 



" Discharge of, tlirough pipes. 212 



" in ditches 214 



" wheels, Turbine 223 



" ram 226 



" engines 230 



Waves, Nature of. 232 



" Velocity of 234 



" Breadth and height of 233 



" To prevent inroads of. . 235, 236 



Weather glass 243 



Wedge 69 



Weed hook on plows 140 



Weighing machine, or platform 



scales 52, E 



Wheat drill 152 



" " Bickford & niiffman's, 



Construction of 153 



Wheel and axle 55 



" " " Modifications of 57 



Wheelbarrow, Operation of 47 



Wheel-cutter to plows 140 



Wheels, large ones run best. ... 39 



" for wagons Proper width 



for 87 



Whiffle-tree? for three horses 50, 97 



Wind, Causes of 252 



" Velocity of 246 



" mill 247 



" " Pumping Avater by 248 



" " Brown's 251 



Wooden legs, why hard to wallc on. 40 



Wood's Plow 119 



Work of men and horses, Estima- 

 ting ..110 



