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OF VETERINARY MEDICINE. 165 



temperature of the horse prior to the injection should be taken 

 three times, morning, noon and night. The horse should be in 

 ood condition and the temperature should be taken under favor- 

 able circumstances. Do not take the temperature soon after 

 drinking cold water but before eating or drinking and at a time 

 when he is not warm from exercise or work. He should not 

 come from an over-crowded or ill-ventilated stable in such a 

 case if ever you want a normal temperature. After making 

 the injection take the temperature the next morning at 

 7 o'clock, then every two hours during that day and if necessary 

 through the niglit. If the horse has glanders you will get an 

 elevation of temperature from 3-6 degrees. The maximum 

 temperature will usually be found about 14 hours after the in- 

 jection. The temperature, as a rule, in these cases rises slowly 

 but persistently. It keeps rising for 24-30 hours. It will then 

 fall within 2 or 3 degrees of normal and stay there, forming 

 what is called the rainbow curve. 



At the point of injection there will be a swelling varying in 

 size from 3-9 inches in diameter. It is usually about % inch 

 thick. Radiating, swollen lines will be seen running from it. 

 These are sometimes 3 or 4 inches long, may be a foot and they 

 are apt to run downward toward the point of the shoulder. This 

 swelling is intensely painful. 



The constitutional effects of the mallein test are as follows : 



The horse hangs his head, loses his appetite and is disin- 

 clined to move and sometimes has minor chills. This depression 

 is so well marked that it is an important symptom. It indicates 

 that the diagnosis of glanders is unquestionable. A great many 

 cases have been tested, destroyed and posted and I have never 

 heard of a case with these symptoms of depression with the 

 febrile reaction and local swelling at the point of injection proving 

 to be anything else but glanders. 



Of course there will be varying degrees of severity of reac- 

 tion from the test. The temperature may run along to 105 or 

 106, and there be present swelling, soreness and depression, and 

 there would be no question of its being glanders. But suppose 

 the maximum temperature is 103, swelling is 3 inches in diameter, 

 no soreness, no radiating lines, no depression, — then this is a 



