EXPERIMENTS IN STIMULATION. 63 
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 
Temp.230° 
~“ — = e 
NECENAS 
Fig. 6. 
Seconds 
Fig. 7. 
marked in Fig. 7; they ought to be 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 
