BRONCHITIS. 303 



slight, rough and grating sound will be heard. This 

 sound, however, can be heard from twelve hours after the 

 attack. According to the amount of serum poured out, 

 and whether the cow be in calf, and how far she is gone 

 in calf, so will the quickness and depth of the breathing 

 be. Bronchitis is the forerunner of pleuro-pneumonia, 

 commonly called the "Massachusetts Cattle Disease." 

 The spotted and solid appearance of the lungs of animals 

 having died of this catttle disease, is due to the lungs being 

 so long immersed in the serum or fluid, which is poured 

 into the chest. Pathological anatomists are well aware, 

 that if the substance of the lungs had been the orig^inal 

 seat of the disease, the animal so aff*ected would either 

 have died, or have recovered in about forty-eight hours ; 

 whereas none scarcely die within the first week from the 

 attack, and many live a lingering life of six weeks and 

 two months. This fact cannot be reconciled with the 

 current theory of the lungs being diseased by direct at- 

 tack. No ! They are solidified from their functions 

 being impaired by being immersed and surrounded by 

 fluid poured out from the fibrous serous tissue, or 

 from the effects of inflammation of the linings of the 

 windpipe, and perhaps the linings of the chest, singly or 

 conjointly with that of the windpipe also. This I am sat- 

 isfied is susceptible of no other theory, or explanation 

 whatever; and the sooner that farmers and others think 

 so too, it will be the better for them. 



Treatment. — If the disease be discovered within forty- 

 eight hours from the attack, give four to five doses of the 

 tincture of aconite root, twenty-five drops to a dose, 

 and give one dose every four hours. If there be no cer- 

 tainty that the disease has existed longer or shorter, 

 and to save time, the aconite may be given along with 



