436 BOARD OF AGRICULTURE. 



mild type, and in a majority of cases has readily yielded to judici- 

 ous treatment. Recovery is usually to as good health as before 

 the attack, in which respect this disease differs widely from pleuro 

 pneumonia, for in the latter the beasts which survive and attain a 

 measure of health, ever afterwards carry incurable organic un- 

 soundness of the lungs, and oftentimes extensive adhesions of the 

 lungs to the pleura. 



Dr. E, F. Thayer, an intelligent veterinary surgeon, and one of 

 the Massachusetts Cattle Commissioners, informs me that, thus 

 far, he has known it very severe in only one herd, of which two 

 died and six others are so lame, or have the udder so disorganized 

 that they might as well be dead. This herd had been highly fed 

 for the production of winter milk, and the treatment was more 

 energetic than judicious. 



The term of incubation, or length of time which elapses after 

 receiving the contagion, before the disease manifests itself, is fre- 

 quently not more than forty-eight hours, but varies from two to 

 six days, and is sometimes first noticed in the mouth, while others 

 become lame before the mouth is much affected. In favorable 



the leg and carry the foot backward. The leg is thus easily held, and the person apply- 

 ing the dressing is saved from all danger." 



Prof. Low also gives the following as the best application to the mouth : 



Carbolic acid (crystals) 1 dram. 



Water 1 pint. 



And for dressing the sores on the teats, thu following : 



Carbolic acid ^ a dram. 



Glycerine 10 ounces. 



"The milk must bo drawn off carefully, and if the sores are extensive, by means of a 

 silver milk tube, introduced with great care, and moved round until all the milk has 

 escaped. Inflammation of the udder may necessitate that it be fomented with warm water 

 for an hour twice daily, and afterwards rubbed with an ointment composed of 



Extract of belladonna ; 1 dram. 



Lard 1 ounce. 



" Should it remain swollen and hard after inflammation has subsided, it should be 

 rubbed daily with iodine ointment. If matter forms, it is of importance to open the sac 

 with a sharp knife or lancet, and obviate the danger of its bursting into the milk 

 ducts." 



He speaks of all cloven footed animals as about equally susceptible to the disease. 

 " To other animals it appears to bo communicated mainly or solely by the contact of the 

 morbid discharges with their mucuous membranes, or by inoculation." ' 



" To man it is frequently conveyed by drinking the warm milk, or by handling the 

 mouths, teats or feet with raw or wounded hands. All young animals feeding upon milk 

 are, like children, liable to diarrha'a." 



