572 BOAED OF AGRICULTURE. [Pub. Doc. 



The autopsy revealed a severe miliary tuberculosis of both 

 lungs, with marked congestion and oedema of the organ. Normal 

 collapse no longer possible. The associated lymph glands were 

 much enlarged and infiltrated with minute tubercles. Patches of 

 minute tubercles were found on the pleural covering of ribs and 

 on the omentum. In the liver many minute tubercles were found 

 in sections. In these, as well as in the tubercles of the lungs and 

 mediastinal glands, tubercle bacilli were very abundant. The 

 other organs have not yet been examined microscopically. 



On October 27, the remaining five animals were killed at the 

 Brighton abattoirs, with the co-operation and assistance of the 

 Board. 



The three sputum animals had all gained in weight : — 



Yearling (sputum IV.), from 525 to 610 pounds. 

 Cow (sputum v.), from 675 to 750 pounds. 

 Cow (sputum VI.), from 865 to 960 pounds. 



No. 79 (sputum culture IV.). — Yearling. One permanent incisor 

 on the right has appeared since date of inoculation. In utero a foetus 

 about three months old. At point of inoculation in the subcutaneous 

 tissue a small nodule about one-quarter inch diameter, with contents 

 soft, cheesy. Attached to this is another smaller nodule, about one- 

 eighth inch diameter. 



On the right side of chest wall, pleural aspect, there are attached 

 along the six caudal ribs, soft, dark-red, pendulous masses of newly 

 formed connective, highly vascular tissue. At point of inoculation, 

 between seventh and eighth ribs, a flatfish pedicled mass of tissue of 

 brownish-red color. On the tenth rib another mass, about three- 

 eighths inch diameter. The left side of thorax is normal. 



Right lung : On the small (cephalic and ventral) lobes newly formed, 

 delicate fringes of hyperiemic connective tissue, which appears along 

 the free lateral margin as a delicate band about one-half inch broad, as 

 well as on a portion of the surface of the lung, occupying exclusively 

 the lines representing the boundaries of the lobules. 



In the large caudal lobe, which is similarly beset with the vascular 

 fringes, a tumor, representing the place where needle penetrated lung 

 tissue, projecting slightly above the convex siu-face, is found two inches 

 from the caudal tijj. This tumor, about three-quarters inch in diameter, 

 contained a completely disintegrated mass and about a dozen foci, one- 

 sixteenth to one-eighth inch in diameter, with yellow softeiaed centre. 

 On the margin of this same lobe, in addition to the vascular fringes are 

 four firm masses of grayish tissue, smooth, flattish, attached by pedicles 

 to margin of the lobe Their largest diameter is from one-quarter to 

 one-half inch. 



On large (caudal) lobe of left lung there is only a very little develop- 

 ment of vascular fringes. Imbedded in the same lobe near lateral 

 margin is a uniformly grayish, slightly translucent mass, sharply defined 

 from the enveloping normal lung tissue. 



