808 PAEASITIC DISEASES. 



presented signs of disease. Their appetite at first became capri- 

 cious ; they then ceased eating their food altogether, but would 

 devour earth or any rotten or decaying vegetable matter. From 

 this time other and more serious symptoms soon developed 

 themselves, such as great restlessness, lying down and sud- 

 denly rising again, pawing with the feet and showing signs ot 

 abdominal pain. The bowels now became very irritable, and 

 from being constipated became very loose, the evacuations 

 being like muddy water. At this stage a most unnatural desire 

 for water was evinced, the sheep roaming about in search of it, 

 and when driven away from it, immediately returning to it. 

 Along with this insatiable thirst, there was also an almost con- 

 stant desire to urinate, the urine passed being as clear as water- 

 The cough now became hacking, but intermittent, each fit of 

 coughing continuing until the animal succeeded in ejecting a 

 quantity of frothy mucus, which relieved it for a time only, as 

 the fits soon returned and became more frequent ; during the 

 intervals a flow of watery saliva continued to drivel from the 

 mouth, accompanied by a constant grinding of the teeth, and a 

 continual twitching of the nostrils and upper lips. 



During the development of the above symptoms the hoggs 

 had most rapidly lost flesh, the adipose and muscular tissues 

 being rapidly atrophied ; the abdomen becoming greatly dis- 

 tended, causing the animal to present a most miserable appear- 

 ance. All the above symptoms increased gradually and steadily, 

 until death closed the scene. 



After trying various remedies without success, Mr. Connochie 

 advised the owner, Mr. Elliot, HoUybush, Galashiels, to call me 

 into consultation. 



Before seeing the sheep in consultation with Mr. Connochie, 

 one carcase was sent to the College for examination. 



In the lungs of this sheep the Strongylus filaria was found, but 

 not in great numbers ; the parasites were also found in the blood- 

 vessels of the lungs, causing embolism ; and in the fourth stomach 

 the Strongylus contortus was found in great numbers. After this 

 examination I visited Hollybush, and saw several sheep in an ad- 

 vanced stage of the disease, and, in addition to the above symptoms, 

 furnished by Mr. Connochie, found that the majority presented 

 aggravated symptoms of oedema of the head, affecting the nostrils 

 and interfering with the breathing, and involving the intermaxil- 

 lary space and inferior cervical region as low down as the breast. 



