214 I'llYM'M.iHiY "I' MUSCLES AM) NERVES. 



thr mucous membrane nf the stomach and intestinal 

 c;,nal, it may be clearly ,-hown that the electric force 

 is really situated in the glands. On irritation of the 

 ner\es which ]):i.ss into the skin by which the glands 

 are excited into activity, the ^land-current decreases in 

 strength, and exhibits a ne-at ive variation, just as the 

 muscle-current decreases -when the muscle is excited 

 into activity. In this case, also, a relation therefore 

 exists between the act ivify and thr elect ric fond it ion ; 

 and this adds to ihe similarity between muscles and 

 glands. 



Kngelmann tried to explain the secretion of the 

 glands physically, by the electric currents present 

 within them. This must, however, be regarded as not 

 yet sufficiently confirmed to claim further attention in 

 this place. 



