THE HORSE. 185 



continue tins method of equine salvation, but, as we have heard 

 nothing more from him in this direction, we may conclude that 

 there are backsliders in his equine salvation army. 



Phenomenology. 



According to duration, glanders may be spoken of as acute or 

 chronic ; according to seat, as nasal, pulmonary, or cutaneous glanders 

 (farcy). 



Pulmonary glanders can occur without either the nasal or cuta- 

 neous forms being present, but it is very questionable if either of 

 the latter can occur without evidences of pulmonary complications. 



Chronic glanders is the common, acute the rare course which 



the disease assumes. 



Incubation. — Duration. 



In inoculations the incubatory period is generally from three to 

 five days, but in natural infection it is very hard to say, the authori- 

 ties varying from five to six days to as many weeks. In that form 

 which is known as chronic glanders, a period of apparent latency 

 may exist for months, yet even here there must be a period of incu- 

 bation. 



Acute glanders may terminate in from ten to fifteen days, while 

 the chronic variety may continue for months or even years, how 

 many is an open question. 



Chronic glanders terminates invariably with the acute form, but 



when the acute variety follows known infection, it never assumes a 



chronic character. 



Acute Nasal Glanders. 



Under this name we usually find both the acute processes in the 

 mucous membranes of the head and those of the cutis treated. 



It is generally the conclusion of chronic glanders, where the dis- 

 ease occurs by natural infection. It also may follow directly on in- 

 fection. 



Although, according to Fleming, Reynal denies that acute gland- 

 ers generally terminates the chronic form, the evidences to the con- 

 trary are so strong as to leave no doubt of its correctness. 



The acute form is ushered in by more or less fever, by hypere- 

 mia of the mucosa of the nasal cavities, with tumefaction of the 

 same, and sometimes with slight epistaxis (bleeding from the nose). 

 In a few days the nodes begin to develop in the mucosa, or dif- 

 fuse yellowish infiltrations of the same take place ; a discharge 

 from the nose follows the first stage of congestion : the same is at 

 first thin, viscid, and contains but few cellular elements, but it soon 



