Microbic Diseases Individually Considered. 313 



Contagious 'pneumonias of the horse.^ 

 The results obtained by different investigators re- 

 garding contagious equine pneumonia are far from 

 being concordant. Nevertlieless, it has been well 

 established that we must separate from the typhoid 

 afiections one or more diseases which especially in- 

 volve the lung. Whilst in typhoid fever the pulmo- 

 nary localization is delayed, in infectious pneumonia 

 the fever of invasion is of short duration and the 

 disease localizes itself in the lung from the first. 

 The early signs of depression in pneumonia are not 

 to be compared with the state of prostration of ani- 

 mals affected with typhoid fever, and these symptoms 

 subside when hepatization is accomplished ; then the 

 animals recover their accustomed liveliness. The 

 conjunctival mucous membrane has a saffron red tint, 

 the eye is bright and well opened. A rusty discharge 

 from the nose appears during the first stage. 



The pulmonary inflammation may be lobar, occa- 

 sionally lobular, or it may be complicated with pleu- 

 risy (pleuro-pneumonia) ; other complications occa- 

 sionally supervene, afiecting the kidney, synovial 

 membranes, articulations, the heart and its serous 

 coverings, the meninges, nerve centers, gastro-intes- 

 tinal apparatus, etc. 



Galtier and Violet assert that the intestine is often 

 affected along with the lung, even as a primary lesion 

 (pneumo-enteritig), and that the disease also affects, 



* [In English veterinary works referred to as a complication of 

 influenza. Ger. Brustseuche. — D.] 



27 



