322 LOCALIZED ELECTRIZATION. 



Althoiigli, of all induction instruments for daily use, Stohrer's involves the 

 least difficulty and care, still, to the j)erfection of its use, as of all delicate 

 instruments, care is necessary. It is especially imi^ortant that the zinc 

 should be thoroughly amalgamated, and too great pains cannot be given to 

 secure this end. It is necessary also that all the points of connection should 

 be kept thoroughly clean, and all the accessories in good order. The zinc 

 should be amalgamated whenever, in use, effervescence of the acid is j)er- 

 ceived. 



Duchenne's large volta-faradic apparatus is unquestionably the most per- 

 fect for medical purposes ; Stohrer's apparatus is the best adapted for the 

 ordinary exigencies of active practice. — //. 7'.] 



