14 THE FARM DOCTOR. 



milder cases the peculiar eruption may be almost altogethci 

 confined to the skin. The symptoms in other ruminants are 

 essentially the same as in the ox. 



The mortality out of its native habitat usually amounts to 

 forty per cent, and upward. 



Treatment. — The treatment of this plague should be legally 

 prohibited under all circumstances. All the attempts of the 

 different schools of medicine and of empiricism have only 

 increased its ravages, while nations and even countries and 

 districts that have vigorously stamped it out and excluded it 

 have saved their property. 



Prevention. — The advent of this plague should be prevented 

 by a sufficient supervision of our ports, and a quarantine of 

 stock. If admitted, the victims should be ruthlessly destroyed, 

 deeply buried, and all places and things with which they have 

 come in contact disinfected in the most perfect manner. 



THE LUNG- FEVER OF CATTLE. CONTAGIOUS PLUERO- 



PNEUMONIA. 



A specific contagious fever of cattle, with extensive exuda- 

 tions into the chest and lungs. 



Like the other plagues already noticed, this is only known in 

 Europe and America as a contagious disease. Its importation 

 into the different countries of Europe has always been traceable 

 to the introduction of diseased beasts or their products. The 

 assertion of the immortal Haller, more than a century ago, that 

 it is propagated by contagion, has received the amplest con- 

 firmation in recent times. It invaded Ireland in 1839-40 by 

 Dutch cattle, England in 1842 by Irish and Dutch cattle, 

 Sweden and Denmark in 184/ by English stock, and later again 

 by English and Dutch, Norway in i860 by infected Ayrshires, 

 Oldenburg in 1858, and Schleswig in 1859, in each case by 

 Ayrshires, the Cape of Good Hope in 1854, Australia in 1858 

 by an English cow, Brooklyn, L. I., in 1843 by a Dutch cow, 



