PLA.TE III. 



Fk;. (i. — Showing disligiireiiicnt of trees caiiBcd l)y 

 liigh-tcnsiou alternating current wires. 



■ Showing eleetrolysis of giis pipes. (After A . A . Kinidsun, 

 " Corrosion of Metals by Electi-olysis.") 



