39^ CHAP. XXXV. TORSION UNDER DIFFUSE STIMULATION 



of stimulus. The negative attained its maximum of — 55 

 after a further period of 5 minutes. The specimen then 

 exhibited recovery, which was completed in the course of 

 about an hour. The results are given in the following 

 tabular form : 



Table XLV. — Effect of Maximal Stimulus on Torsional 

 Response of Vigorous Thunbergia. 



I give the record of another experiment (iig. 222), in 

 which the up-curve represents the normal torsion, the 



Fig. 222. Direction of torsion reversed under electric stimulation 

 applied at arrow. Note gradual recovery. (Thunbergia.) 



negative being represented by the down-curve. A reversal 

 from positive to negative torsion after stimulation will be 

 noticed, after which the response exhibited recovery. 



