1 16 Messrs. T. L. Brunton and J. Fayrer on the [Jan. 22, 



6.52. Animal lying on its side. When a bright light is brought before 

 its eyes it draws back its head. The cornea is qnite insensible. When 

 the paws are irritated by striking, pinching, or pricking there is no re- 

 sponse. When the inside of the ear, nose, or mouth is tickled, the cat 

 shakes its head, and sometimes moves its paw to put the irritant away. 



7.5. On touching the eyes it sometimes draws back its head, but there 

 is not the slightest motion of the eyelids. It voluntarily moved its paws 

 and head as if to rise, and then sank back as if asleep, and lay still on its 

 side. 



7.6. Laid it on its belly. It rose and walked a step or two towards a 

 dark corner and then fell. Immediately afterwards the muscles of the 

 neck gave a sort of shudder. After movement the respiration becomes 

 much quicker, and then rapidly becomes slow. After lying a minute or 

 so its respirations are 27 per minute, 



7.25. Moves its paws and tries to get up voluntarily, but cannot do so. 

 Irritated paws and ear by sparks from a Du-Bois coil. No reaction. On 

 irritating the inside of the thigh in a similar manner, it stretched out its 

 fore legs, protruded its claws, and seemed to be trying to grasp me. 



7.33. The respiration ceased without convulsions. The cannula in the 

 trachea was immediately connected with an apparatus for artificial respi- 

 ration, and this was kept up. While some adjustment was being made 

 on the apparatus the animal was observed, and its heart was found to have 

 ceased to pulsate about five or ten minutes after artificial respiration had 

 been begun. 



On opening the thorax the lungs were found somewhat congested. 

 The right side of the heart was moderately filled. The left ventricle was 

 quite empty and firmly contracted. The surface of the stomach and in- 

 testines was much congested. The interior of the stomach was not con- 



In this experiment, respiration continued for two hours after the in- 

 jection of the poison. The most remarkable points as regards respiration 

 are its great acceleration, with occasional deep breaths at first, its vermicular 

 character about the middle of the experiment, and its regularity towards 

 the end. Reflex action seemed entirely abolished, and sensation very 

 much impaired ; the mental faculties seemed sluggish ; but voluntary power 

 was retained, and the movements of the animal were not indefinite but 

 distinctly purposive. 



The motor nerves and muscles were evidently not paralyzed ; but the 

 grey matter of the cord seemed to have lost its power of inducing reflex 

 actions or of conveying painful impressions. Tactile impressions, such as 

 laying the animal on its belly, still caused reaction. The movements 

 thus induced, as well as those caused by irritating the ears, &c., may all 

 be reasonably ascribed to the action of the brain. 



Closure of the eyelids would seem to be a purely reflex act, in which 

 the brain is altogether unconcerned, 



