274 EPITOME OF EVIDENCE ON PLEURO-PNEUMONIA. 



Rutherford saw it before being slaughtered. On March 1st I 

 required to take another cow and kill it, and I found both 

 lungs bad. This animal was inoculated on the 9th. According 

 to Mr Rutherford, it was successfully inoculated, the tail was 

 amputated, and it was considered safe ; so that if the cow of the 

 17th was confirmatory of the fact that when an animal con- 

 tracts pleuro-pneumonia by the natural method it cannot be 

 inoculated, the case of the 1st March was the very reverse. 

 Both lungs were bad. With the others it had the tail ampu- 

 tated, was considered to be free from disease, and still it 

 succumbed to the disease. It was one of those in the byre 

 when the disease first broke out. The tail of the animal 

 was amputated on the 16th, and on the 28th I found the 

 animal showing symptoms of the disease, and it was killed on 

 1st March. On 3rd March I found four cows showing symp- 

 toms of pleuro-pneumonia. I ordered two to be removed 

 which had been inoculated, and took, according to Mr Ruther- 

 ford, and had their tails amputated. The post-rtiortevi took 

 place on the following day, the 4th, and the lungs of both 

 animals were found to be bad. The carcass of one was con- 

 demned. The disease had evidently been in existence prior to 

 inoculation. So that we have here again two cows that were 

 inoculated and took, and their tails amputated, and yet they 

 showed well-marked S3anptoms of the disease. Then, on 7th 

 March, I ordered two cows to be slaughtered. The jjost-tnortem 

 examination was as follows : — The brown cow bad of one lung 

 and encystment commencing in two places, " This animal was 

 inoculated by Mr Rutherford on l7th February, and took. The 

 black and white cow had one lung affected, but less than any 

 animal yet slaughtered; also inoculated on 17th February, 

 and took." On 9th March, my own brown cow, which was 

 brought to the college and inoculated on the 9th of February, 

 was taken to Salmond's byre, and put amongst the others. She 

 calved a perfectly healthy calf, and she is at the present 

 moment as sound and healthy as any cow. On 15th March 

 a brown cow, in good condition, was ordered to be killed. 

 Back arched, temperature increased, sj^mptoms of lumbago 

 and rheumatic iritis, breathing disturbed, cough, but I could 

 not make out lung affection. Mrs Salmond said, " This cow is 

 in fair condition, and it would be a pity to let her pine away. 

 If she has got any lung affection, you will be quite willing to 

 compensate." I said that we would do so, and we took her 

 away. In the j^ost-mortevi examination, the right lung pre- 

 sented three distinct encapsulated masses. This animal was in- 

 oculated on 9th February, and took, and was considered in health 

 till 13th March. Two days after that she was killed. I do not 

 think the lung had been long encapsulated; the masses were 



