446 



INDEX. 



I Wiedemann, Gustav, on diamag- 



netism of platinum, 339 

 Wilde, Henry, Electric Candle, 373 



Magneto-electric Machine, 407 

 Wind, Electric, 43 

 WohleSs Cell, 182 

 Wollastoris Battery, 169 

 Wiillner on dielectric capacity, 270 



w 



WATER, Electrolysis of, 206, 413 

 Weber, the, 323 (see also Appendix, 



Weber, Wilhelm, the Electro-dyna- 

 mometer, 356 



on diamagnetic polarity, 342 

 Wheatstone, Sir Charles, on the 



brush discharge, 290 

 Automatic Telegraph, 423 

 Dynamo-electric Machines, 408 

 on supposed velocity of elec- 

 tricity, 296 

 Wheatstonds Bridge or Bal- I ZambonVs Dry Pile, 13, 182, 264 



ance, 358 j Zanotti, experiment on grasshopper, 



Wiedemann, Gustav, on effect 



magnetism on torsion, 113 



of j 229 



Zero Potential, 37, 239 



THE END. 



Printed By R. & R. CLARK, Edinburgh. 



