612 PLEURO-PNEUMONIA. 



diseased stock is more to be recommended in dairy farms 

 than elsewhere. 



Every attack of this disease must be specially studied. I 

 find that I have to vary my practice according to circum- 

 stances, but have no fear whatever as to stopping the disease 

 speedily, and with the smallest loss which the farmer can 

 sustain after having the disease in his stock. This I accom- 

 plish without recommending that our markets should be pol- 

 luted by diseased animals. 



About the beginning of the year I am usually consulted as 

 to what shall be done with feeding stock on a farm where 

 disease has appeared, in order to consume an abundance of 

 food. I never recommend the diseased to be sold, and 

 half-fed cattle to be bought in. Loss is apt to be in- 

 curred two ways in doing this, and I do not find above one, 

 or at most two animals, seized with pleuro-pneumonia after 

 the preventative treatment I have suggested. 



The practice of inoculation is one which I have to condemn 

 from experience. It does some good, but a great deal more 

 harm. The good is only such as may follow the use of 

 setons, and is obtained at the cost of a certain per-centage 

 of deaths, and cases of gangrene of the tail. It is not an 

 infallible preservative, but very far from this, and it simply 

 tends to keep up disease in the country by turning the 

 attention of people from the true means of prevention. A 

 wealthy Glasgow cowkeeper buys in cows to which he com- 

 municates disease by placing a diseased cow amongst them. 

 He has a large per-centage of recoveries, and all the animals 

 that have thus had the disease, or resisted it, are kept on as 

 regular stock. A capitalist may attempt such a procedure, 

 but it is an expensive way of keeping clear of pleuro- 

 pneumonia. 



Dr Willems of Hasselt suggested and carried out in 1851, 



