gruber: blocking nerve impulses. 215 



and its effect is just as quickly removed without injury to the 

 function of the nerves ; and what is also of importance is, that 

 we have in it an effective, ready power, by means of which we 

 can exclude the conductivity of the afferent fibers in a mixed 

 nerve trunk. 



It is possible that it may prove a practical and valuable aid 

 in surgery and for experimental purposes. 



2— Univ. Sci. Bull., Vol. VH. No. 11. 



