ACTIOX OF CHLOROFORM 



55 



lobes. Remove the cotton plugs and sew the skin together 

 over the skull with a needle and thread, tie a thread (not 

 tightly) around the left hind foot and place the animal on 

 moist cotton in a casserole (Fig. 25) to recover. 



The action of ether is largely manifested on the cerebrum, 

 especially in higher animals. When the animal recovers, 



--Olfactory nerve 

 -Olfactory lobe 



- Cerebrum 



Pineal body 

 Jhatamencephahn 



- Optic lobe 



-Cerebellum 

 *J---Fourfh ventricle 



-Medulla oblongata 

 Liong. fissure of W vent. 



Fig. 48. Frog's brain. 



carefully compare its spontaneous and reflex actions with 

 those of a frog which is just being anesthetized and also 

 with the condition of the frog after the anesthesia is com- 

 plete. 



Chloroform. (Action on the Central Nervous System.- 



Optic Lobes.) 



2. In the same manner as in the above experiment, anes- 

 thetize a frog with a few drops of chloroform. Expose the 



