203, 



191 



192, 

 205, 



IVashington, vessel, 50 



Washington Monument elevator, 6, 10 



Watkins, J. Elfreth, 68, 69 



Watt, James, 186, 187, i8( 



195. 197. 198, 199 

 209 

 engine, ig6, 201 

 steam engine, 47, 188 

 straight-line linkage, 220 



"weather glass," see barometer, 98 



Weihe, Carl, 213 



Weissenborn, Gustavus, 122, 123, 125 



Wells, Julia Ann, 168 



West Point Foundry Association, 1 1 9 



Western Railroad Association, 131 



Wheatstone, Charles, 106, 107, 116 



wheel-barometer, loi, 114 



193- 

 206, 



Whetstone, John L., 127, 130 

 Whewell, William, 103 

 White, James, 199, 200 



John H.: Introduction of the Loco- 

 motive Safety Truck, 11 7-1 31 

 Whitworth, Joseph, 216, 222, 223, 224 

 Willis, Robert, 187, 198, 201, 202, 206, 

 209, 211, 212, 215, 221, 222, 223, 

 224, 227 

 Winans camel engine, 126, 130 

 wind, meteorological instruments, 97, 98, 

 loi, 102, 105, 106, 107, 1 10 

 direction indicator, 102 

 force indicator, 102 

 pressure gage, 97, loi 

 vane, 98, 105 

 velocity indicator, 106, iio 



wind — continued 



self-registering direction indicator. 

 107 

 Withington, Sidney, 65, 73 

 Wolf, A., 97, 98 

 Wolfe, W. A., 222 

 Woods, Arthur T., 225 

 Worthington pumps, 37, 38 

 Wren, Christopher, 99, 100, loi. 103, 108. 



113. 115 

 yawl, 135, 149 



Yerkes refracting telescope, 159, 171 



Young, William J., 163 



Youngken, Heber W., 91 



al-ZahrawT, Abu al-Qasim Khalaf ibn 



'Abbas, 83, 84, 85, 87, 88, 89, 90, 



91. 92. 93> 94 



414 



BULLETIN 228: CONTRIBUTIONS FROM THE MUSEUM OF HISTORY AND TECHNOLOGY 



