INCUBATION — SYMPTOMS. 123 



or dietetic, is likely to operate thus unfavourably, that, in sus- 

 pected cases, the common practice has been, by bleeding or 

 purging, to convert suspected into confirmed cases, and so 

 lessen the risk of cohabitation. 



There are to be found, in some of the German veterinary 

 journals, most remarkable cases of extension of the period of 

 latency in chronic glanders. Many of these carry ivith them 

 the impress of correct reporting and authentic statement of 

 fact. (See Fleming's ' Sanitary Police,' article ' Glanders.') 

 Still, I am rather inclined to view them as cases which in all 

 probability were, for a long period prior to the exhibition of 

 specific symptoms, suffering from structural changes of an 

 occult character, situated in connection with internal organs 

 and structures, and where the constitutional symptoms were 

 not pronounced enough to indicate any serious disease. In 

 all such cases, where the lesions are confined to the lungs, 

 trachea, larynx, or any situation where the true morbid 

 deposits or changes are hidden from view, the disease — merely 

 from evidence derived from observation on the animal itself — 

 cannot be diagnosed. 



In speaking of the symptoms of glanders and farcy, it is 

 probably better to separate the so-called forms of the disease, 

 and to note the different appearances or signs which each form 

 exhibits ; also, seemg that both are known to us in the some- 

 what different aspects of acute or rapidly developed, and 

 chronic or indolent, to observe in what respects the differing 

 phases of this one disease resemble or disagree with each other. 



1. Symptoms of Acute Glanders. — Acute glanders may be 

 developed primarily by inoculation or infection, or it may, and 

 indeed often does, follow as a sequel to the chronic form. This 

 latter mode of its development is denied by some, as Reynal ; 

 still, even in my comparatively limited experience of the 

 disease, I have encountered several. 



Wherever occurring, the symptoms may be regarded as con- 

 stitutional and local. The general or constitutional symptoms 

 are very pronounced ; they ajDpear first, and are shortly followed 

 by the diagnostic or local, on the accession of which there may 

 be a slight mitigation of the former. 



The earliest symptoms are those indicative of great febrile 

 disturbance : rigors or shivering-fits, often persistent, with a 



