DR. LEGEAR'S STOCK BOOK. 311 



rise above 104 degrees Fahrenheit, the disease is milder and 

 more prolonged. The bowels are usually constipated, and to- 

 ward the fatal end the feces may become softer and tinged with 

 bile. The urine near the fatal termination is deeply stained with 

 the coloring matter of the blood, while during the course of the 

 disease it may be quite natural in color. The pulse, as well as 

 the breathing, is also quickened. As the end approaches the 

 animal becomes very weak and stupid, the blood is thin and 

 watery, and the poor sufferer may lie down most of the time, or 

 until death takes place. 



V.canii nation after Death. It is very important at times to- 

 know whether an animal died of Texas fever or some other dis- 

 ease. This can as a rule be determined at once by a thorough 

 microscopic examination of the blood. But as this method is en- 

 tirely in the hands of experts, the general reader will have TO 

 depend on certain changes caused by this disease, which may be 

 detected by the naked eye when the animal is opened. These 

 changes in the internal organs are as follows: The spleen or 

 milt is much larger than in a healthy state, weighing three or 

 four times as much, and its contents or pulp consists of a mottled 

 blackish mass. The liver is also found to be enlarged, has lost 

 its natural brownish color, and has on its surface a paler, yel- 

 lowish hue. The gall bladder is found to be fully distended with 

 bile of a cloudy or flaky consistency. The contents of the blad- 

 der should be examined. This usually contains urine which 

 varies in color from a deep port wine to a light claret. These 

 arc the principal changes and sufficient proof of the trouble. 



Prevention. According to the latest experiments, Texas fever 

 i> carried north only by the cattle tick. Hence, to prevent Texas 

 fever north of the quarantine line, the pastures, etc., must be 

 kept free from cattle ticks, and to do this, no Southern cattle 

 with ticks must be allowed upon them. Cattle cars may also be 



