ELECTRIC DISCHARGE WITH THE CHLORIDE OF SILVER BATTERY. 59 
which the horizontal ebonite axis A Z works, to this is fixed the ebonite handle H ; 
there are metallic collars A and Z, carrying the pivots, fitted on the ebonite axis. 
These pivots are in metallic communication, by means of leading wires inserted in 
the ebonite axis, respectively with the spring pieces S and S', in which are inserted 
renewable platinum wires held in their places by binding-nuts. The four bracket 
standards B B, B' B', are connected with the apparatus through which the discharge 
Fig. 3. 
is to be made by means of the wires N' and P'. The bracket standards, B B, and 
B B , are connected together respectively by means of diagonal wires below the 
top ebonite plate E, the middle ebonite plate E', half an inch thick, intervening 
between them. These bracket pieces have adjustable platinum contact wires screwed 
through their heads and held in position by binding-nuts. The horizontal axis 
carrying the spring contact pieces S S', is held in its place by a strong spring 
i 2 
