GBNBRAIv DlSEASBlS. 135 



on ausculation at the back of the neck over the trachea a tubular mur- 

 mur is heard. The crepitant rales and tubular murmurs of pneumonia 

 are heard on the sides of the chest if the pneumonia is peripheral, but 

 in pneumonia complicating influenza the inflamed portions are frequently 

 disseminated in islands of variable size and are sometimes deep seated, 

 in which case the characteristic auscultory symptoms are sometimes 

 wanting. From this time on the symptoms of the animal are those of 

 an ordinary grave pneumonia, rendered more severe by occurring in a 

 debilitated animal. After resolution, however, and absorption into the 

 lungs convalescence is rapid, and recovery takes place perhaps more 

 quickly than it does in the simple form of the disease. There is a cough, 

 at first hacky and aborted, later more full and moist, when we have a 

 discharge from the nostrils which is muco purulent, purulent, or hem- 

 orrhagic. 



As in simple pneumonia, this discharge may be "rusty," due to cap- 

 illary hemorrhages. "We find that the blood is thoroughly mixed with 

 the matter, staining it evenly instead of being mixed with it in the 

 form of clots. At the recommencement of the complication the animal 

 may be subject to chills, which may again occur in the course of 

 the disease, in which case, if severe, an unfavorable termination 

 by gangrene may be looked for. If gangrene occurs, ushered in 

 by severe chills, a rapid elevation of temperature, a tumultuous 

 heart, a flaky discharge from the nostrils, and a fetid breath, the 

 symptoms are identical with those which occur in gangrene complicating 

 other diseases. 



Complication of the Brain. At any time during the course of 

 the disease, at an early period if the fever has been intense from the out- 

 set, but more frequently after three or four days in ordinary cases, a 

 congestion of the brain may occur. The animal, which has been stupid 

 and immobile, becomes suddenly restless, walks forward in the stall 

 until it fastens its head in the corner. If in a box stall and it becomes 

 displaced from its position, it follows the wall with the nose and eyes, 

 rubbing against it until it reaches the corner and again fastens itself. 

 It may become more violent and rear and plunge. If disturbed by the 

 entrance of the attendant or any loud noise or bright light, it will stamp 

 with its fore-feet and strike with its hind-feet, but is not definite in fix- 

 ing the object which it is resisting, which is a diagnostic point between 

 meningitis and rabies, and which renders the animal with the former 

 disease less dangerous to handle. If fastened by a rope to a stake or 



