THE POSITIVE RESPONSE 183 



2 seconds and the negative 14 seconds after the application 

 of the stimulus. 



Constant current. — Stimulation was here induced by the 

 ' make ' of kathode. The intervening distance was 20 mm. : 

 the positive impulse traversed this length in 3 seconds, the 

 negative requiring a longer period — namely, 9 seconds. 



Condenser discharge. — The distance of the responding 

 leaflet from the point of application of stimulus was 25 mm. : 

 the positive impulse reached the leaflet 4 seconds after the 

 discharge-shock, but the transmission time of the negative 

 was much longer — namely, 15 seconds. 



Table II. — Showing Transmission of Positive and Negative Impulses 

 in Biophytum under different Forms of Stimuli 



I give above a table showing the effect of various stimuli 



