APPEARANCES ON DISSECTION. 



203 



tubercle, however small, usually holds a particle of 

 calcareous matter in its centre. The lungs, in the ad- 

 vanced stag-e of rot, will be full of cells or caverns, 

 owing- to the destruction of its texture by suppuration 

 in those parts where tubercles existed. The cells or 

 sacs are of all sizes, from that of a bean to that of a 

 goose eg-g ; but if the animal has been taken care of 

 during the progress of the complaint, and lingered 

 long, the abscesses will be so numerous, and so closely 

 situated, as to give the remains of the lung the appear- 

 ance of a large bag. Extreme cases of this nature are, 

 however, rare ; as the sheep, in general, either falls 

 before the knife, or is killed from exposure to cold long 

 ere the disease has reached its farthest limit. These 

 sacs contain purulent matter, of all shades and odours, 

 and identical with that which the animal coughed up. 

 Tubercles, and all their concomitants as above de- 

 ed, are also met with in the liver, though not so 

 quently as in the lungs. They constantly occur in 

 the clyars (mesenteric or lacteal glands) which on this 

 account are much above their usual size, and are occa- 

 sionally found in other parts ; but I need not proceed 

 in their description, as sufficient has been said about 

 them to enable the unprofessional reader to understand 

 their relation to the complaints. 



Fluke worms and hydatids are almost constant at- 

 tendants on rot, and seemingly most important ones, 

 especially the former, which have, I may say, kept a 

 great bulk of the learned and unlearned for many years 

 in a perpetual bustle, and have so effectually hood- 

 winked writers on this subject, as to prevent them see- 



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