ELECTRICAL APPARATUS. 



313 



runs parallel to the cylinder, and has the points in the side 

 instead of the end. At other times it is fixed to a separate 

 foot, as is to be seen in the figure below. 



Fig. 372. 



To Work the Machine. Warm the whole well before the 

 fire, and cleanse it from all damp and dust. Take off the 

 cushion, scrape away all dirt, spread evenly upon it some 

 fresh amalgam, put it back in its proper place, and fasten 

 to the screw which connects it with its upright a brass 

 chain, the other end of which reaches to the table or floor, 

 or the walls of the apartment. Upon now turning the 

 handle, streams of fluid will be seen to issue from the cushion, 

 27 



