Specific Contagious Diseases. 91 



Nervous symptoms appear in some outbreaks, with de- 

 lirium, butting, shivering, and tenderness of the loins, while 

 in the milder cases the peculiar eruption may be almost 

 altogether confined to the skin. 



The symptoms in other ruminants are essentially tlie 

 same as in the ox, and in the peccary there is sufficient re- 

 semblance for recognition. 



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 at- 

 tempts of the different schools of medicine and of empiri- 

 cism 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 pre- 

 vented by a sufficient supervision of our ports and fron- 

 tiers 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 UrNG-PLAGUE OF CATTLE, COISTTAGIOTTS PLETTEO-PNETTMONIA. 



A specific contagious fever of cattle, with extensive ex- 

 udation into the chest and lungs containing a micrococcus. 



Like the other plagues already noticed this is only known 

 in Europe and America as a contagious disease. Its impor- 

 tation 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 re- 

 ceived the amplest confirmation in recent times. It invaded 

 Ireland in 1839-40 by Dutch cattle, England in 1842 by 

 Irish and Dutch cattle, Sweden and Denmark in 1847 by 



