EEPOET OF THE BUEEAU OF ANIMAL INDTJSTEY. 503 



ural; liver firm and natural in color; spleen under 2 pounds and also natural in 

 color, consistency, and appearance. The lungs were normal in the subject I saw, 

 though in animals dying in March, 1887, there was found chronic bronchitis, the air 

 tubes being filled with a tenacious muco-purulent product (an accidental complica- 

 tion). The interior of the cornif erous frontal process, where the horn had been torn 

 off, showed some congestion of the mucous membrane. The blood coagulated on 

 exposure to the air, but with less than the usual consistency. 



Diagnosis. The surroundings of the herd, the symptoms, and post-mortem lesions 

 tend to but one diagnosis the so-called malignant catarrh of cattle. 



Recommendations. As tfhis affection is usually associated with a poison generated 

 in connection with damp or water-logged soils, Mr. Ahrens was instructed to drain 

 and fill the offensive pond at his farm buildings, and to either fence in the swale in 

 his pasture, or, better, remove the herd to a new pasture on a gravelly, well-drained 

 soil. It was further advised to give the cattle daily a dose of sulphur and sulphate 

 of iron, and to carefully watch the excretions and on the first sign of costiveness to 

 administer a laxative. 



If these recommendations are attended to I apprehend little future danger to the 

 herd of Mr. Ahren, while his neighbors are only likely to suffer if they are exposed 

 on the same ground. 



