Symptoms. 



307 



is also a muco-purnlent discharge, and sometimes a snuffling 

 respiration is observed. The tongue is coated, and the exhaled 

 air frequently disseminates a disagreeable odor. The mucous 

 membranes of the cheeks and of the pharynx show either uni- 

 form or spotted reddening. The animals are constipated, the 

 urine is diminished in 



quantity and has a high " ___- 



specific gravity. Auscul- 

 tation of the. lungs re- 

 veals intense vesicular 

 breathing. 



This condition lasts 

 from one to two days, 

 whereupon, round red 

 spots appear upon the 

 skin (roseola variolosa), 

 which in some places 

 may be surrounded by a 

 moderate serous infiltra- 

 tion, manifested by an 

 'urticaria - like elevation 

 of the affected parts of 

 the skin. Such spots are 

 found in the vicinity of 

 the eyes, on the cheeks, 

 lips, and nostrils, on the 

 vulva, or on the borders 

 of the prepuce, on the 

 udder, or on the scrotum, 

 on the surface of the tail 

 and on the inside of the 

 thigh, therefore princi- 

 pally on those parts of 

 the body which are free 

 from, or only slightly 

 covered by, wool. Less 

 frequently they occur al- 

 so on the chest and' on 

 the lower abdomen. 



On the following day 

 hemp-seed size, round 

 reddish nodules may be 

 observed in the middle of 

 the red spots, which lose 



their color on pressure. ,, „ n . ■, . x. 



They continue to increase in size on the following days to such 

 an extent that the base may reach the size of a ten cent piece 

 (stadium papulosum). From the surface of the nodules a tena- 

 cious fluid oozes out; soon the superficial layers become raised, 

 and a clear yellowish serous fluid accumulates under them. 





