MAGNETO-ELECTRIC INSTRUMENTS. 53 



should be left in the solution only while the application is 

 made, as it soon becomes coated with a deposit which should 

 be cleaned off after using, or if left to dry on may be scraped 

 off with an old knife ; a clean surface of zinc being neces- 

 sary to the perfect operation of the machine. The solution 

 may remain in the copper any length of time, as it does not 

 act on it. 



Directions to Use the Machine. Fill the exterior apart- 

 ment of the copper box about half or two-thirds full of wa- 

 ter, in which is dissolved an ounce and a half of blue vitriol. 

 Place the zinc frame within it, care being taken to keep the 

 zinc free from contact with the copper, in all directions. 

 Fasten one end of one of the connecting wires securely in 

 the hole in the corner of the zinc, the other wire in the cop- 

 per, and the other end in the cups with binding screws at 

 the side of the instrument. Touch the spring with the finger, 

 and the vibrations will continue by the power of the battery. 

 The effect is received from conductors, attached to wires, 

 secured in the cups with screws at the end of the instrument. 

 The conductors, with insulated handles, are to apply to or 

 around any diseased part ; or one may be held in the hand, 

 and the other conductor applied around the part affected. 

 They are pleasantly used with a sponge tied over one of 

 them, and wet with water. A metallic plate is also used to 

 place the foot on, or to apply to any part under the clothes. 

 It may be used agreeably, and with much effect, by the 

 patient holding one of the conductors, and another person 

 the other conductor, and with the other hand making passes 

 over or around the diseased part. This is particularly use- 

 ful about the head, and where the pain is under the hair it 

 should be thoroughly wet, to have the effect pass through 

 it. The best effects have followed from regular applications 

 of a mild power, from five to fifteen minutes, twice or more a 

 day, a great power in many cases of Nervous Disease fail- 

 ing to secure the best effects, by the reaction produced in 

 the system. The machine may be used with confidence, no 

 injury being known to result from its use. 



Price, large size, in polished mahogany case, 



4-inch high, 7-inch wide, 9-inch long, $10.00. 



" polished rosewood case, - 50 cts. extra. 



" small size, in polished mahogany case, 



3|-inch high, 6-inch wide, 7^-in. long, $8.00. 



" polished rosewood case, - 50 cts. extra. 



