SECRETARY'S REPORT. 67 



convey by these terms it has been impossible for tis to form an 

 opinion. But as it was so frequently found, "we are forced to 

 conclude that it was something belonging to healthy animals of 

 the bovine race. 



3l7\ Chenery^s Herd. 



June 2d. 1860, Dr. Martin examined a one year old black 

 and white Dutch heifer after slaughtering. She was taken 

 quite sick in September, 1859, and continued very sick about 

 six weeks ; then she apparently began to recover. When 

 slaughtered her eyes looked bright, her hair was glossy and 

 smooth, and the appetite was good. She had coughed some 

 since the first attack. Percussion dull over the whole of the 

 right side of the chest. On applying the ear, a coarse mucous 

 rattle was heard at the base of the right lung. The left side 

 of the chest wa^ normal, with the exception tliat the respiration 

 was more distinct than usual. 



Autopsy 39. — At the examination there were found universal firm 

 adhesions of the riglit lung. In the latter was a pouch large enough to 

 hold a quart or two, with a smooth inner surface, resembling mucous 

 membrane ; branching off from the pouch were bronchial tubes. The 

 lung Avas of a light pink color, and floated in water — it felt like leather, 

 and seemed to have been so compressed that its cells only partially 

 admitted the air. The heart was thin and flaccid. Left ventricle thinner 

 than the right. 



Autopsy 40. — Killed a cow six years old ; she was taken into the herd 

 December 1st, 1859, as step-mother for a calf whose own mother had 

 died. This cow was presenting all the general appearances of health, 

 but had a slight cough. No adhesions ; no serum; but at the base of the 

 right lung was a darki<h-red portion somewhat more than three inches 

 square, heavy, and firm, like liver. It did not collapse with the rest of 

 the lung, and was friable. On incision, pus was seen to fill the divided 

 bronchi in such a way as to give the cut surface the appearance of being 

 covered with small pustules. The remainder of this and the other lung 

 appeared healthy. — Dr. Martin, June 2. 



There have been killed, from time to time, since September 

 25th, 1860, in Mr. Chenery's herd, twenty-one animals in all, 

 of various ages and conditions. Of these twenty-one animals, 

 nine were found free from any disease whatever. Of the other 



