488 GENERAL DISEASES. 



resembling that of glanders, of the glands between the angles of. 

 the lower jaw. 



A persistently high and varying temperature, ranging, say, from 

 101° F. to 103° F. and continuing thus for several weeks, tends to 

 corroborate evidence of the existence of glanders. 



Horses which come from a glandered stud should be viewed with 

 great suspicion, especially if they evince a tendency to shiver or 

 have rough staring ooats. Here, the clinical thermometer (p. 691) 

 will be of great use in arriving at a correct conclusion. 



The outward symptoms of ulcerative lymphangitis (p. 492) and 

 epizootic lymphangitis (p. 490) are practically identical with those 

 of farcy, and an exact distinction can be made only by means of 

 mallein or a high-power microscope. The fact that farcy has no 

 characteristic symptoms throws doubt on many of the supposed 

 cases of farcy which are said to have recovered. The symptoms of 

 ordinary lymphangitis (p. 494) would not be mistaken for those 

 of farcj- by a competent veterinary surgeon. Petechial fever (pur- 

 pura, p. 501) " i . distinguished from acute glanders chiefly by the 

 slight amount of fever that is present, and by the fact that the 

 extensive swellings of the skin are never nodular " {Friedherger 

 and Frohner). 



•3, Inoculation by the discharge from the nose or from a 

 sujJjiosed farcy abscess of the suspected animal would as a rule 

 decide the question fairly well, within three weeks or a month. 

 As glanders in donkeys is generally of a well-marked and virulent 

 type, these animals are fit subjects for such an experiment, whicli 

 should not be made, unless the stake at issue was of sufficient im- 

 portance to justify the cruelty, and unless the law respecting vivi- 

 section was not violated. 



4. Hastening the development of the supp;)sed disease by giving 

 the animal 15 grains of bichromate of potash for two or three days 

 in its food ; for a full dose of aloes, which should be administered 

 by a stick or balling pistol, so as to avoid accidental inoculation. 



5. The Microscope. This method can be employed only by those 

 who have studied bacteriology. 



I do not think that the appearance of tubercles in the lungs 

 of a horse (pp. 480 and 484) is sufficiently distinctive in cases of 

 glanders to warrant its acceptance as proof of the existerce, ur.less 

 we found the bacilli of glanders in these nodules. 



PREVENTION. — This is a question which particularly concerns 

 tile owners of large studs of omnibus, tramway, cab, and city cart 

 horses ; for these animals are more exposed to the contagion than 

 horses of a better class, and are largely recruited from infected 

 areas. Commercial horses in cities are specially expo.sed to this 



