568 BOARD OF AGRICULTURE. [Pub. Doc. 



from its situation aud appearance could be referred to any former 

 spontaneous infection. 



Let us examine first the effect of sputum culture II. and bovine 

 culture II. which were of nearly the same age when injected. 



The weight of the yearling (2616) receiving the sputum culture 

 had risen in the two months from 520 to 580 pounds, that of the 

 heifer (2635) from 650 to 710 pounds. There was no continuous 

 fever recognized in either animal, though the temperature was 

 taken twice a day, morning and afternoon. The fluctuations 

 noticed were evidently due to the effect of the sun while the 

 animals were in the enclosure. 



The lesions in the yearling (2616) were very slight. At the seat of 

 inoculation, between the sixth and seventh ribs, a mass of tubercles 

 attached to pleura about one by one-half inch dimension, the tubercles 

 composing it partly cheesy, partly firm. Near cephalic border of 

 ventral lobe of right lung, a sub-pleural nodule, not yet necrotic, about 

 one-eighth inch in diameter. On abdominal aspect of diaphragm, right 

 side, about twenty-four isolated tubercles, each one-twelfth to one-eighth 

 inch in diameter, uniformly yellowish in color. A few similar tubercles 

 on the omentum. Slight adhesion of omentum. When adhesion 

 removed, about six or seven nodules found on caecum, one-twelfth inch 

 in diameter. Evidently the injection needle had passed through dia- 

 phragm into abdomen, deposited some fluid there and some in thorax 

 when partly withdrawn. 



The lesions in the heifer which had received the bovine culture 

 were quite extensive, and were diffused through thorax and 

 abdomen, owing to the penetration of the diaphragm by the needle 

 of the injection syringe : — 



Thorax : The right pleural cavity shows an abimdant eruption of 

 tubercles along the lateral margin of the ribs. Some of the masses 

 formed are characteristically flattish, grape-like, and in bulk quite large. 

 One mass measured eight by three by one inch. Others of similar 

 dimensions were present. On the lateral margin of the right lung a 

 series of loosely attached flattish neoplasms, up to two inches in diameter, 

 besides hypersemic fringes of loose connective tissue. On the convex 

 surface of this limg only a few tubercles. Large patches of tubercles on 

 pericardium and diaphragm. 



Li the muscular portion of diaphragm, right side, a mass of tuber- 

 culous tissue (probably place where needle penetrated) , one and one- 

 half by one and one-half by one-half inch in dimension. The most caudal 

 of the series of dorsal mediastinal glands about twice normal size, on 

 account of the presence of many small foci, showing in some cases an 

 opaque, yellowish centre. 



Abdomen: The omentum densely studded with agglomerations of 

 tubercles, covering the greater part of its surface. These masses vary 



