748 DISEASES OF CATTLE. 



may take the place of the muriate of iron and chlorate ,of potash, in 

 above prescription 1 . 



TUBERCULOSIS — TUBERCULAR COIf SUMPTIOH — PHTHISIS. 



This disease is characterized by the deposition of small, nodular 

 masses, called tubercles, beneath the lining membrane of the chest 

 (pleura), at the base of the lungs, but unconnected with them, and 

 throughout the inner surfaces of the ribs, diaphragm, liver, intes- 

 tines, kidneys, brain, etc. 



From the fact that other parts of the body suffer equally with 

 the respiratory organs, later writers class this with diseases of the 

 blood. 



The earliest, symptoms 

 are generally those of an- 

 aemia. The pulse is feeble 

 and small, the appetite is 

 capricious, a slight cough 

 exists, with dullness of spir- 

 its. In a week or two 

 emaciation is seen to pro- 

 gress rapidly, the skin looks 



Pig. 971.-Consumption-PMI.iiii. dull > the coat is starin S' and 



feels harsh and dry. Pain is 



evinced on percussion of the sides, and on pressure of the loins. 

 The internal temperature is generally above the normal. This state 

 of affairs continues for some time, increasing in severity ; the cough 

 becomes hacking, the animal very thin and hide-bound, often covered 

 with lice, the respirations are very quick, and death takes place.- 



Treatment must begin in the earliest stages, as in the later 

 ones nothing can be done to arrest the progress of the disease. 

 Cows should be dried off, and oxen kept from work. Oil-cake, and 

 other oleaginous food, in liberal quantities, should be given. Coun- 

 ter-irritants — •: mustard plasters or fly blisters — should be repeat-, 

 edly applied to the chest. 



CANCEROUS ULCERS A1M> OSTEA SARCOMA. 



Sometimes the parotid glands swell and exhibit a large, hard,' 

 and painful tumor, as in Fig. 972. This does not always inter- 

 fere with mastication. The tumor soon becomes a soft, diffused, 

 fluctuating sac, with the skin for a covering, which, on being 

 opened, discharges a large, quantity of fetid pus. N 



The bones also may become implicated, and present another 

 local form. Large tumors form in the jaws, and interfere with mas- 



