LECTURE VI 



A Representative Experiment Effects of Indirect Excitation Effects of 

 Direct Excitation immediately after Death, and Later How Long, 

 after a Cat's Death, can a Cat's Foot continue to Exhibit Signs of 

 Life? More A B C A Vegetable Surface Surface against Surface 

 Anodic and Kathodic Biedermann and the Frog's Tongue A 

 Warning. 



61. Demonstration. This cat is dead, but its tissues are 

 still alive. It was decapitated at 4.45 ; it is now 5.5, and I shall 

 talk with my eye on the clock, as I wish to show you an experi- 

 ment just half an hour after the death of the cat. 



FlG. 41. Diagram of experiment described in the text. 



The story of the cat's skin, or, more properly speaking, of its 

 foot-pad, commences from the observations of Hermann and 

 Luchsinger, who showed that on the skin, as on glands, secreto- 

 motor can be disentangled from vasomotor reactions. The 

 experiment of Hermann and Luchsinger cannot be shown here. 

 It is a vivisection of which preliminary No. I is the abolition of 

 97 G 



