Neuritis. Perineuritis. 183 



instances labor pains have come on and the ewe has perished in 

 a vain effort at delivery. Illness lasted about a week. 



Prominent lesions have been noted under causes. It need only 

 be added that no notable difference from the normal was found 

 in making a count of the red globules, and the size of the in- 

 dividua;l globule was normal or only perceptibly smaller as is to 

 be expected in a dense plasma. In different cases there was 

 found congestion of the abomasum, small intestine, liver arid 

 brain. 



Prevention. The most important measure is to maintain a 

 strong, well-developed muscular system, and a vigorous nervous 

 tone by a sufficiency of out door exercise during the winter 

 months. Half a mile or a mile at least should be given daily to 

 the breeding ewes, no matter what the attendant difficulties. If 

 clover hay is musty it should be replaced in whole or in part by 

 another kind. Parasites and other diseases which tend to lower 

 the general tone should be appropriately treated. 



Treatment. When once established, the disease has not been 

 successfully treated. Nerve tonics are indicated. 



NEURITIS. PERINEURITIS. 



Definition. Causes : traumas, poke, stanchions, collar, yoke, interfering, 

 neurectomy, fractures, tumors, callus, rheumatism, gout, violent over-dis- 

 tension. Lesions : nerve sheath red, swollen, exudate, leucocytes in excess, 

 fibroid thickening, nerve atrophy, degeneration, axis granular, myelin in 

 oily globules, peripheral extension. Muscular degeneration and atrophy. 

 Symptoms : tenderness, swelling, muscular atony, wasting, spasms, twitch- 

 ing, decreased excitability, paralysis, in section swelling on proximal end. 

 Prognosis ; disability for weeks, months or year ; response to electric cur- 

 rent, operability of tumors, curability of rheumatism or gout, hopeful con- 

 ditions ; long standing degeneration, etc., unpromising. Treatment : rest, 

 soothe, anodynes, splint with soft pad, essential oils, lead and opium lotion, 

 ice, snow ; derivatives ; laxatives ; diuretics, anti-rheumatics. Faradisation. 



Definition. Inflammation of a nerve leading to paralysis of 

 the parts to which it is distributed. 



Causes. Traumatism is the most common factor. Among the 

 common examples are injury of the seventh nerve above the 



