184 REPORT OP THE COMMISSIONER OF AGRICULTURE. 



their formation a number of days before the death of the animal. The 

 lung tissue presented no signs of hepatization. 



The seeond cow examined was brought to the Station over two 

 months before, and at the time of this examination was somewhat 

 emaciated. She was coughing when first seen, had little appetite, and 

 an examination of the lungs showed dullness and loss of respiratory 

 murmur over the lower part of the right lung. 



Three animals had previously been lost in the stable from which she 

 came, and before death they presented symptoms of lung disease. 



This cow was slaughtered, and on opening the cavity of the thorax 

 the left lung was found adherent to the diaphragm and the right lung 

 to the costal pleura. The right lung contained four or five masses, 

 varying from two to four inches in diameter, surrounded by a tnin cyst 

 wall and composed of hepatized lung tissue in a disintegrating condi- 

 tion. 



The third animal, which was also somewhat emaciated, was obtained 

 January 10, from a stable where two cows had been lost in the preced- 

 ing summer. She had been purchased for $50 two or three months 

 before she sickened, and was at that time in good health. When 

 brought to the Station her temperature was 104° F., and there was com- 

 plete dullness and loss of respiration over the left lung. Her condition 

 was substantially the same on the day of examination, January 12. 

 When, after slaughter, the ribs of the left side were removed, a consid- 

 erable quantity of amber-colored liquid escaped. This lung was com- 

 pletely hepatized and solidly attached to both the ribs and diaphragm. 

 A section of the lung disclosed the interlobular tissue distended with 

 lymph, though not to the degree sometimes seen. There was, how- 

 ever, a very distinct marbled appearance, and a difference of coloration 

 between the upper and lower parts of the lung that probably resulted 

 from a differeiice in the age of the hepatization in these two portions. 

 The right lung of this animal was in a normal condition. 



A fourth cow was obtained from a Washington stable the same day 

 that the above examinations were made. She died during the night of 

 January 12. Her appearance before death and the condition of her 

 lungs when examined were very similar to that of the third cow men- 

 tioned above. 



May 1, 1884, a sick cow was reported at Miss Fannin's, on M street, 

 in this city. She was examined the same day and found to be moaning 

 with each expiration; her breathing was labored ; there was salivation, 

 extended head, and elbows turned out. The bronchial breathing was 

 loudest on the right side; the left side was very dull on percussion up 

 to and somewhat above the median line. The right side had a dull 

 area at lower portion of thorax and another above the median line. 



Mayo, this animal, now sinking rapidly and already tympanitic, was 

 slaughtered. The autopsy revealed the left lung completely solidified 

 with the exception of a very small part of the anterior lobe. Various 

 stages of inflammation were to be seen in the different parts of the lung. 

 There were thick false membranes and solid adhesions to the dia- 

 phragm and costal pleura. The right lung was extremely emphysema- 

 tous, and parts of it adherent to the costal pleura, but there was no 

 hepatization of its tissues. 



CONNECTICUT. 



In the latter part of August, 188.°>, I investigated an outbreak of dis- 

 ease at Salem, Conn., which had affected cattle on the farms of H. E. 



