02 



ANNUAL REPORT OF THE 



Off D'>f 



FIG. 6.— RED HEIFER (16,022). 



Fig. 6. 



Left bronchial gland; 



Necropay : Weight 421 pounds; imtlirifty condition. The only dis- 

 tinct evidence of tuberculosis in this animal is a calecareous nodule 

 the size of a pea in the left bronchial gland. The pleura and perito- 

 neum were more or less opaque and showed films or flakes of fibrin 

 partly or wholly organized and in some places evidently of consider- 

 able age. Guinea-pigs inoculated from the calcareous nodule in the 

 bronchial gland became tuberculous. 



It is evident that this animal had suffered with a widespread in- 

 flammation of the serous membranes from which it had practically 

 recovered. Such a diffuse inflammation of the serous membranes 

 of both visceral cavities occurs in tuberculosis of cattle of the type 

 of pearl disease. But in this case there were no tubercles or evi- 

 dence of tuberculosis. One must consider the possibility that in this 

 animal there was a healed, fresh tuberculosis of the pleura and peri- 

 toneum. 



Third Group. Six calves which rec'-ivcd no treatment and v.^erel^ept 

 as controls f >r the purpose of comparison. 



