734 DISEASES OF CATTLE. 



and often show purple spots. The extremities are cold, and the 

 respiration labored and painful, and the^urine becomes bloody. 

 These symptoms increase in intensity ; there is a fall of tempera- 

 ture, a bloody, spumous discharge comes from the nostrils', there are 

 colicky pains, mortification sets in, and death follows in from twelve 

 to twenty-four hours. 



Gloss Anthrax, Black Tongue, Blain, or Malignant Sore 

 Throat, is that form of Anthrax which localizes itself on the tongue 

 and fauces. It is now conceded by many to be of the nature of 

 Black Leg, of which we shall speak further. It is as remarkable as 

 other forms of the disease, in appearing without noticeable signs of 

 disturbance. The tongue is seen to be enlarged, especially at the 

 base, and dark in color. The mucous membrane covering the cheek, 

 tongue, and palate, is raised in blisters, exuding a yellowish or red 

 fluid, leaving behind sloughing ulcers on a swollen base. (See Fig. 

 956.) A high fever, accompanied by great prostration, appears at 



an early stage, and rapidly in- 

 creases. The pulse is weak, and , 

 becomes scarcely perceptible. 

 Where recovery takes place, con- 

 valescence is slow, but death us- 

 ually occurs in from one to two 



Fig. 957.— Black Leg, or Bacteria Charbon. davs - 



Black Leg is a malignant form 



of Anthrax localized in the leg, tongue, shoulder, side, etc. Cat- 

 tle of all ages are subject to it, but it occurs almost exclusively in 

 stock from six months to one or even two years old which have 

 been changed from a poor pasture to rich, low land, or \yhich are 

 in rich condition generally. It is due to a bacteria different from 

 that of Anthrax fever. The high state of plethora induced, and the 

 work and growth of those bacteria, result in swelling in some part, 

 usually the shoulder, hips, or hock, which is rendered hot and 

 painful. (See Fig. 957.) The disease rapidly increases, and we 

 notice a lameness of the limb affected. There is marked tumefac- 

 tion and stiffening ; mortification sets in ; the limb or affected part 

 becomes cold, and crepitates under pressure, in consequence of 

 an accumulation of gas in the subcutaneous cellular tissue. The 

 constitutional symptoms are the same as in acute fever. Some few 

 cases recover slowly. 



Treatment. — With the first form the animals usually die from 

 the violence of the attack, which precludes successful treatment, but 

 in a later stage, when its violence is abated, it sometimes submits to 



