356 CCENUKUS CEKEBKALIS IN CATTLE AND SHEEP. 



ning round" is not a constant symptom. In the early stages, 

 it is often absent, the sensorium and voluntary muscles being 

 more or less affected with dulness and partial paralysis, stiff- 

 ness of back and awkward gait ; there is a peculiar appear- 

 ance of the eyes dependant on the dilated pupils, the bluish 

 colour of the conjunctiva, and apparent prominence of the 

 eye-ball. Total blindness may result, and the animal feeds 

 but little, cannot follow the flock, strikes against trees, walls, 

 or other obstacles, which it may meet with in moving 

 about. 



When the coenurus cerebralis exists in the cerebellum, a 

 remarkable combination of symptoms may present them- 

 selves. The animal advances with its head elevated, can 

 scarcely lift its fore legs, and there is a hesitating move- 

 ment of all the extremities. Having accomplished the first 

 steps, the creature rapidly advances, occasionally by a succes- 

 sion of imperfect leaps and falls ; it then struggles to rise, 

 and may not succeed, or it rolls on its side several times in 

 succession. Emaciation advances, and death ensues sooner 

 or later, but as a matter of certainty, unless the animal is re- 

 lieved naturally or artificially. The natural method of relief, 

 which is by absorption of the bones of the skull, and evacu- 

 ation of the hydatid, is very rare, though occasionally a far- 

 mer is astonished to learn that a sheep affected with sturdy 

 has struck against a sharp stone, broken its head, and reco- 

 vered. The explanation of this is, that the skull having be- 

 come thin, the blow produces a penetrating wound, through 

 which the coenurus cerebralis may escape. A plan is suc- 

 cessfully resorted to occasionally for the removal of the 

 hydatid and cure of sturdy. 



Sturdy is occasionally mistaken for functional disorder of 

 the brain, due to impaction of the third stomach, which is a 

 disease of the spring season, of an acute nature, characterized 



