BUKEAU OF ANIMAL INDUSTRY. 



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slaughtered. An examination of the lungs of Edith St. Hilaire showed 

 the posterior half of the right lung to be adherent to the ribs and dia- 

 phragm. The whole posterior part of the lung was inclosed in a fibrous 

 cyst, the lung tissue being hepatized, of a reddish color, but still intact 

 and firm. The median part of the left lung was in the same condition. 

 With Dessie 4th the inferior and posterior parts of the right lung 

 adhered by thick false membranes to the ribs and diaphragm. There 

 was an abundant effusion of straw-colored liquid in both sides of the 

 chest. Two-thirds of the right lung was hepatized, the thickened inter- 

 lobular bands being distended with exudation liquid. There was plain 

 evidence from the color and appearance of the different parts of the 

 lung that the inflammation had been of a progressive nature, and that 

 some lobules had been invaded much later than others. The left lung 

 was covered at its posterior border with thick, white, false membranes; 

 these were also seen over its anterior lobe; there were blood discolora- 

 tions of the pleura and signs of hepatization in its earliest stage. In 

 this case the intensity of the inflammation, the amount of lung tissue 

 involved, the progressive nature of the inflammation, and the marbled 

 appearance of the lung made it impossible to hesitate longer in con- 

 cluding that the disease was contagious pleuro-pneumouia. It was iu 

 every respect a typical case of this disease. 



Mr. Boyd had been informed at my first visit that the disease was 

 probably pleuro pneumonia, and that lie should at once take every pre- 

 caution to prevent the infection of other animals, both in his own herd 

 and in the herds of his neighbors; and he was informed as soon as the 

 examination of two animals was concluded that there could no longer 

 be doubt as to the nature of the disease, and that it would be necessary 

 to take every possible precaution to prevent its spread. 



August 15 I went to Geneva, 111., and examined the condition of the 

 animals that were still on Mr. Clarke's farm. Mr. Clarke informed me 

 that the first animal which showed signs of disease was the bull Finis 

 Lawrence, which became sick during the latter part of May and was 

 killed in June. The cows Ella Lawrence, Duchess of Broome County, 

 Myrrhine, and Damask all showed signs of sickness about the middle 

 of June. Ella Lawrence was killed with the bull; Duchess of Broome 

 County died. Myrrhine and Damask recovered, and were on the farm 

 at the time the examination was made. Tama AVarren had also been 

 killed, and Mr. Clarke insisted that this was because she was worthless 

 as a breeder. Six animals in all had been killed or had died on Mr. 

 Clarke's place since May. According to accoiu^s received from other 

 sources it is probable that Tama Warren and Nutrina of Tunlaw were 

 sick as early as April G. 



At the time my examination was made Damask and Myrrhine were 

 both in very good condition, showing more flesh than one usually sees 

 with Jersey cows. Their hair was smooth and glossy, and, externally, 

 they presented every appearance of perfect health. My examination 

 was made in the pasture field, where, owing to the wind and the dis- 

 turbance caused by flies, it was not as satisfactory as was desirable. 

 A.t this time the lungs of Damask showed no signs of disease. Myrr- 

 hine showed dullness and loss of respiration behind the right shoulder. 

 Two other cows in the herd and two bulls presented more or less evi- 

 dences of lung disease, but this was not sufficiently marked to allow a 

 positive conclusion as to its cause. One cow was evidently affected 

 with tuberculosis. Mr. Clarke had brought on his place since June 1 

 one animal from Xew Jersey, three which he had purchased at the 

 Epler sale at Viginia, 111., one from C. A. Keefer, of Sterling, 111., and 

 13 A — '84 



