Protection of Private Herds. 73 



stock, and those who buy from the dealer, that lose bj 

 the infection. As a single instance, I may repeat what an 

 Irish Earl (Lucan) told me of his experience. On his Irish 

 estates he lost heavily and contimiously, until he decided 

 to exclude all strange cattle and men. The moment a 

 beast was observed sick he removed it from the herd, 

 and in three months his stock was healthy and continued 

 so. This is the common experience of those who breed 

 tlidr own stock, and instances are given in this article of 

 its perfect success in the plagiie-stricken districts in 

 New ifork. 



(i) If compelled to buy, do so in a healthy district and 

 transport in disinfected cars or by roads where tJiere loill be 

 no contact tvith suspicious herds, and in no case through a 

 district in ivhich infection is knoiun to exist. 



(c) When newly purchased cattle are taken in, place them 

 in quarantine in a safely enclosed barn or lot, at least 100 

 paces distant from all other cattle, and under special attend- 

 ants. 



The need for these precautions must be evident, as the 

 disease sets in and makes some headway before even a 

 watchful attendant wiU observe any signs of illness. 



3. Measukes foe Eestricting the Moetality of the 

 Plague in Generally Infected Districts. 



(a) Preventive Medication. 



In infected herds much may be done to check the de- 

 velopment of individual cases, by the daily administra- 

 tion of astringent tonics, and especially if they are also 

 disinfectant. In herds at pasture and even in those kept 

 in close and notoriously infected city stables, the daily 

 use of 2 drachms sulphate of iron (ferric sulphate) has 

 frequently, in our experience, put a limit to the disease 

 within a month. If to the sulphate is added one drachm 

 of carbolic acid, the efficacy will be increased. The same 

 virtue has been claimed for a number of other astrin- 

 gents wliicli it is needless to mention. 



