plp:uro-pneumonta. 



179 



were exposed for sale. On three several occasions these veteri- 

 narians affirmed that some of the animals were affected with an 

 unusual disease of the respiratory organs. In November 1890, 

 in a lot of more than 400 cattle direct from Illinois and Indiana, 

 one died, and two were very ill, the symptoms leading to the sus- 

 picion that they were affected with contagious pleuro-pueumonia. 

 " The sick animals were killed, and the lungs examined by 

 Godbille, who found no pleurisy, but such a suspicious appear- 

 ance that, considering the importance of the matter, the two 

 sets of lungs were sent to Alfort, to be submitted to M. Nocard, 

 one of the most illustrious of veterinarians and pathologists, 

 and he reported that at the first glance a section of the hepatised 

 tissue presented the appearance of a recent lesion of pleuro- 

 pneiimonia contagiosa. The tissue was dense, compact, friable, 

 the colour varied from bright red and deep brown to almost 



Photo- 3ficrograph hy TV. Forgan. x 200, 



Fig. 6a. — Pure Pneumonia as seen in Pleuro-Pneumonia. 



a. Healthy epithelium of bronchus. 



b. Fibrinous plug. 



c. Air vesicles containing croupous — fibrinous— exudate. 



black, whilst the lobules were isolated from one another by 

 thick septa, infiltrated with a considerable quantity of yellow 

 limpid fluid, &c."— See Veterinary Journal, October 1891. 



