6o2 Veterinary Medicine. 



may absolutely incapacitate the animal from getting up. In our 

 wilder range cattle it may show itself in active delirium and 

 Lignieres notes the same of the Pampas cattle in Argentina. The 

 animal lying dull and apathetic (triste), on being approached 

 may raise his head, open his eyes and glare threateningly at the in- 

 truder. Sometimes when trembling violently, and swaying ready- 

 to fall, he will marshal all his remaining energy to plunge at a, 

 man on foot or mounted. Some have become blind and uncon- 

 sciously walked against obstacles, others have been noticed to run 

 in wide circles. 



The milk secretion is suppressed, any little that can be drawn, 

 in the advanced stages having a thick, creamy appearance. 

 Abortion is common in the pregnant cow. 



The condition of the urine has, however, always drawn 

 especial attention and the names red-water and hcsmoglobinuria 

 have accordingly been largely applied to the disease. When, in 

 infected areas, the milder types of the disease have failed to show 

 red-water (Jamaica), the identity of the affection with Texas- 

 fever has even been denied. Shortly after the rise of tempera- 

 ture, the urine becomes turbid, and this gradually encreases to a 

 more or less deep red. It assumes its darkest hue when the de- 

 struction of red globules is most active and during convalescence 

 it disappears. The suppression of urinary secretion may account 

 in some cases for the absence of this symptom even at the crisis- 

 of the fever, yet, as a rule, it is present at such time, and, even 

 though it may have escaped notice during life, the red-water is 

 found in the bladder at the necropsy. It may be of all grades, 

 from the merest tinge of redness to a reddish brown, coffee- 

 grounds, or blackish aspect. The coloration is not due to red 

 globules, but to the haemoglobin which has escaped from the dis- 

 integrating globules, and been eliminated by the kidneys. It is- 

 always associated with albumen, and, in the advanced stages and 

 during convalescence, when the elimination of haemoglobin has- 

 ceased, that of albumen continues in small amount for weeks. 



The thin, watery appearance of the blood when the disease has- 

 reached its height, is constant and even more characteristic than 

 the red-water. A single drop drawn from the skin will show to 

 the -naked eye the pale, thin, transparent appearance, but ex- 

 amination under the micro.scope will confirm this. It remains. 



