210 



Dr. A. D. Waller. On the 



[Oct. 23, 



Tetan. Exc. — 

 Resp. 



Tetan. Exc. 

 Eesp. 



+ 



= -0-0030 



0-0018 



The lenses were now heat-coagulated in normal saline ; opalescence 

 appeared at 52° to 55° ; coagulation became complete at 62° to 72°. 

 No trace of blaze-current could be obtained from either of the two 

 leases after the heat -coagulation. 



Exp. 28. Lens of Babbit's Eye. — 24 hours post mortem. 

 2nd day. 



Normal current - ■ 0036. 



1st lens. 

 (2nd day). 



(3rd day.) 



Excitation. 

 S.s. coil at 1000 - 

 + 



10000- 

 + 



5000 



2nd lens. (2nd day.) 

 Normal current S.i 

 -0-0019 



(3rd day.) 

 N.C. = 



1000- 

 + 



5000- 



+ 



1000 + 



Exp. 29. — Lens of Rabbit's Eye. 

 N.C. = +0-0025. 



S.s. 5000 + 



Strong tetanisation in both 



pairs of directions + 

 Neg. deflection of -0*02 



Response. 

 -0-0021 

 -0-0003 



-0-0003 

 a trace - 



-0-0031 

 -0*0015 

 -0-0017 

 -0-0002 



nil. 

 a trace - 



0-0040 

 0-0060 



0-0002 

 0-0003 



Exp. 29. Pigeons' Eyes.— -25.11.02. 



The unpolarisable electrodes A and B are applied to the intact 

 cornese of the eyes of a decapitated pigeon. 



Excitation is led in by A and B, the response is led out by ACj or 

 by BC (previously compensated). 



