Broncho- Pneumonia from Inhalation. 303 



pneumonia. Again from the arrest of digestive movements 

 fermentation of the contents of the rumen with tympany fre- 

 quently occurred, threatening regurgitation and inhalation, and in 

 addition the prolonged decubitus on one side favored hypostatic 

 congestion of the lungs and paved the way for a severe attack 

 when the alimentary or medicinal matters entered the bronchia. 



Owing to narrow nostrils and less exposure at rapid paces on 

 dusty roads, cattle suffer less than horses from inhaled particles 

 of dust, yet when moved in droves the dust becomes a source of 

 trouble. Other foreign bodies find their way into the lung by 

 accident. Thus, in different cases of broncho-pneumonia, the 

 following agents have been found in that organ : a bundle of 

 hemp (Roch), some hog's bristles (Ujhelge, IvCyendeker), a 

 spike of rye (Strebel), masses of cotton in cattle fed uncleaned 

 cotton-seed (Dralle), a broken fragment of a probang (Ujhelge). 



The penetration of the lungs, pleura, and heart by pins, 

 needles, and other sharp-pointed bodies, coming from the reticu- 

 lum, should be mentioned as causes of pneumonia and pleurisy by 

 foreign bodies, though these have not entered by inhalation, and 

 the progess of the case is not from bronchia to lung and pleura, 

 but rather from pleura to lung, pericardium and heart. Also 

 penetrating wounds of the walls of the thorax, by which foreign 

 bodies, (bullets, forks, spikes, nails, horns, tusks) have entered 

 the lung and set up pneumonia. 



Lesions. As occurring from materials inhaled, the broncho- 

 pneumonia is most common in the lower parts of the anterior 

 lobes, in which the lesions appear as multiple centers of inflamma- 

 tion with limits conterminous with the lobulettes, and with the 

 interlobular tissue largely infiltrated . The affected lobules stand out 

 beyond the level of the adjacent lung, at first soft and infiltrated 

 and later firm, hard, resistant, and friable, of a deep red, or dark 

 blue color, with in its center, the bronchia, filled with a fibrinous 

 exudate, and later becoming caseous, and containing the offend- 

 ing foreign body. The latter may vary in different cases as 

 noted above. As the disease advances gangrene appears, the 

 lung becoming dirty white, brownish or greenish, and exhaling 

 a foetid odor. The peribronchial connective tissue is infiltrated 

 and often shows hard nodules which when caseated might be 

 mistaken for tubercles. In other cases an extension is made to 



