CONTENTS OF THE FOURTH DIVISION. 



CHAPTER XVI. 



ENZOOTIC DISORDERS. 



ttert water in Sheep. Sanguineous ascites. Ma'adie de sologne. Pourrimre 



Blood disease in lambs. Xavel UL Joint ill. Lamb disease in America. Parasitic 

 diseases. General remarks on parasitism. Parasites never originate spontaneously. 

 Mode in which entoz-a injure and destroy life. Classification of parasites. 

 Cystocestoicl worms. Nematoid or round worms. Trematode or sucking worms. 

 Measles in the pig. Measles in cattle. Hydatids of the liver and other organs. 

 Echinococcus veterinorum. Sturdy, gid, or tumsick in cattle and sheep. Tapeworms 

 in different domestic quadrupeds. Parasitic lung-disease in lambs, calves, and other 

 animals. Fluke rot in cattle and sheep. On pentastoma tasnioides of the sheep. 

 Enzootic diseases of the horse. Periodic ophthalma. Influenza. Glanders and farcy. 



CHAPTER XVII. 



NERVOUS ACTION. 



Muscular irritability a 'id nervous stimuli. Reflex actions. Physical nervous actions. 

 Mental nervous actions. Nerve-cells and fibres. Their functions. Analysis of nervous 

 matter. Spinal cord. Its structure and functions. Functions of the groups of cells. 

 Crossing of sensitive impressions on the cord. The brain. Oblong medulla. Pons 

 varolii. Cerebrum. Cerebellum. Their functions. Uses of the medulla in respiration 

 aud deglutition. Vital point. Effects of pricking the floor of the fourth ventricle. 

 Effect of removing the cerebellum. Turning or rolling as a result of injury to certain 

 parts. Removal of the cerebrum in birds, and its effects. Cranial nerves. Olfactory 

 nerves. Optic nerves their functions. The influence of their crucial and other fibre?. 

 Auditory nerves. Common motor nerves of the eye. Pathetic nerve. Abducent 

 nerves. Trifacial nerves. Their varied functions. Sympathetic ganglia on their course. 

 Facial nerve its influence on the salivary glands. Glosso-pharyngeal nerves 

 their influence on deglutition. Pneumogastric nerves. Chauveau's experiments. 

 Effects on breathing. Effects on the lungs when divided. Action on the heart ; on 

 the stomach. Spinal accessory nerves; their influence on the voice. Hypoglossa! 

 nerves. 



