EXl'ElllMKNTS IN STIMULATION. 



03 



In order to render apparent the degree in which 

 both these effects are produced, I here append a 

 pair of tracings which were procured from the same 

 piece of tissue when exposed to the different tem- 

 peratures named. (N.B.— The seconds are wrongly 



i'iiX. 0. 



Fig. 7. 



marked in Fig. 7 ; they ought to he the same as in 

 Fig. 6.) 



I may as well state here that in water at all 

 temperatures, within the limits where responses to 

 stimuli are given at all, the staircase action admits 



