CONTAGIOUS DISEASES OF DOMESTICATED ANIMALS. 457 

 Wliich was the second animal attacked, and when f 



The light-colored or Fisher cow. She was taken somewhere between the 7th and 

 14th days of November. The calves iirst showed symptoms of sickness about the 14th 

 of November. They were taken sick one by one with an interval of about seven days 

 between each, except in one instance, when two were attacked at the same time. 



Mr. Merrill described the symptoms as follows : 



Coughing is the first symptom. The nose is dry, and the animal stands with its 

 back arched and elbows turned out. If forced to move britikly about it will cough 

 and pant. The disease seems more severe during a thaw than when the weather is 

 colder. There is some rimniug from the eyes. The appetite is invariably good up to 

 about twenty-four hours before death. From six to twenty-four hours before death 

 occurs, the auiuial is not able to stand. As death approaches, the animal groans quite 

 loudly, the breathing becomes accelerated, and the cough seems to come from a more 

 or less solid body. In coughing, a calf will extend its nose on a level with its neck. 

 This symptom has not been observed to so great an extent among the cows. 



How many cows, calves, and yearlings did you have in the fall ? How 

 many of each have been sick, and how many have died ? 



In the fall I tied up the following named animals: 



Cows 11 head. " Sick, 4 head. Died, 1 head. 



Calves 23 head. Sick, 10 head. Died, 6 head, 



Yearliusrs 13 head. Sick, 3 head. Died, head 



_ • _ _ 



Total 47 17 7 



How have these animals been housed, and how have they been fed? 



The cows and yearlings were tied up on the same side of the barn in a long row, 

 but the j'earliugs were kept at the further end of the building by themselves. The 

 calves have all been kept together in a separate pen 13 x 12 X 7 feet. During the 

 day they were all turned out into the barn-yard. The cows have been fed on roots 

 and hay, the yearlings on hay alone, and the calves on hay and roots. 



Mr. Merrill continued : 



The cows from this strange herd were put into the barn-yard, and the calves into a 

 little pasture adjoirting. About a week after this herd left, my own calves broke into 

 this pasture. Tiiat would make the date about the 18th of September. October 20th 

 1 brought home a di'ove of calves myself from the north, aud the first calves taken 

 sick were some of these driven calves. 



This being the statement, I regarded a post-mortem examination neces- 

 sary in order to settle the question as to whether this outbreak was oc- 

 casioned by contagious pleuro-pneumouia. • Fur this purpose I thought 

 it best to take the "Fisher," or Light-colored cow, as she was the first at- 

 tacked and had been the sickest animal of the lot. She was, therefore, 

 slaughtered. 1 found the lungs in a perfectly healthy condition. The 

 pleiu'a of the rib.s still showed plain traces of previous iutiammation, but 

 slie had so far regained her health as to commence to again lay on 

 healthy iat. This cow never had contagious pleuro-pneumouia. 

 . I found a calf quite sick, evidently in an almost djnng condition. 

 This was next killed, and an exammation revealed tlie fact that it had 

 been suffering from a clear and unmistakable attack of bronchitis. This 

 I demonstrated to the satisfaction of the medical representative of the 

 New Hampshire commission. Dr. Watson. There had l)een preserved 

 a pair of lungs taken from a calf which had died a few days previously. 

 These showed the lesions of S[)oradic pneumonia, Avith some bronchitis. 

 All the specimens were sent to New York for the inspection of the pro- 

 fession. 



