200 



Dr. A. D. Waller. On the 



[Oct. 23, 



10000 + 

 10000 - 

 10000- 

 10000 + 

 5000- 

 5000 + 



-0-0013 

 -0-0048 

 -0-0052 

 -0-0015 

 -0-0027 

 -0-0008 



Moderate compression gives - deflection off scale in consequence of 

 mechanical excitation. Considerable compression abolishes all re- 

 sponse. 



The other lens gave no response ; the eye from which it had been 

 removed was evidently injured, being full of blood. 



Exp. 15. Codfish (4th). — Supplied as fresh ; neither lens gave any 

 response. 



Exp. 16. Mackerel. — Lens. Fish reputed fresh. 



5000+ -0-0004 



5000- -0-0011 

 Moderate compression - 



5000+ +0-0002 



5000- +0-00015 

 Severe compression - 



5000 + nil. 



5000 - 



Exp. 17. — The lenses of four sheep's eyes brought from 1 the 

 slaughter-house and tested within 3 hours after death gave no distinct 

 response. 



Exp. 18. Sheep's Head. — 1st lens removed from the eye 4 hours post 

 mortem with least possible compression. Normal current = +0'003 

 decreasing. 



1000 + 



nil. 



5000 + 



-0-0008 





-0-0030 



+ 



-0-0002 





-0-0020 



+ 



-0-0004 





-0^0007 



+ 



-0-0002 





-0-0003 



Same lens 

 Next day 



No response after immersion in hot water. 



2nd lens removed from the eye 18 hours post mortem. 



5000 + 



-0-0005 

 -0-0012 



