3IO Veterinary Medicine. 



breathing, and reacts injurioush^ on the nerve centres. The 

 normal eructations from the rumen may continue, with Hquids 

 and floating solids, and in the paralytic state of the throat these 

 too often pass in part into the bronchia, causing septic bronchitis 

 and pneumonia. The same is liable to follow the administration 

 of liquids, the irritant drugs passing into the larynx, trachea and 

 lungs. The pulse becomes soft, .small and finally almost imper- 

 ceptible. It may be 50, 5o and upward. 



In favorable cases, defecation may still occur, or the rectum 

 once emptied may fill again through the continuance of peris- 

 talsis, the milk continues to be secreted, and in one to four days, 

 spontaneous defecation and micturition may be resumed, and the 

 patient may get on its limbs and commence feeding. There is 

 usually at first a little weakness of the limbs, but this is transient 

 and health is restored in a very short time. The suddenness of 

 the improvement is often as marked as of the attack. The 

 patient is left prostrate and insensible, without giving any re- 

 sponse when the eyeball is touched and in two or three hours it 

 is found on its feet, eating, with eyes bright and clear. 



Some patients, however, are restored to ordinary sensation, in- 

 telligence and appetite, while the hind limbs remain paralytic, or 

 paretic, and the station and gait both weak and uncertain for 

 days or even weeks. In such cases there have been presumably 

 structural changes in the nerve centres, which require time for 

 repair. 



In fatal cases, death may occur quietly from apoplexy, cerebral 

 compression, or narcotism, or it may be preceded by a period of 

 marked excitement or disorderly nuiscular movements. Lifting 

 of the head, throwing it alternately on the shoulder and on the 

 ground, trembling of head, members and body, cramps or jerk- 

 ing of the limbs or of other parts, drawing the hind limbs up 

 against the abdomen, and again extending them, rolling of the 

 eyes, loud, noisy, irregular, embarrassed breathing and a run- 

 ning down pulse are often marked features. 



The temperature range is peculiar. At the start there may be 

 some hyperthermia 103° or 104° ; with the advance of the dis- 

 ease it tends to become lower, 98°, 96°, or 94°. When improve- 

 ment sets in, it rises again promptly to the normal. 



Cadeac describes a special form which is ushered in by great 



