182 BOVINE PATHOLOGY. 



and fhe animal loses flesh rapidly, paralysis of tlie hind 

 limbs occurs, and death soon ensues. The recurrence of 

 irritation at the seat of injury takes place in the ox as in 

 other animals, and the patient may endeavour to tear his 

 inoculated limb to pieces. The ox thus affected plunges his 

 nose into water when it is presented to him, but is prevented 

 from drinking by spasms' of the throat. The period of 

 incubation is shorter when the head is the seat of inocula- 

 tion than when other parts of the body are injured. 



Fost-mortem appearances. — Congestion of the brain and 

 its meninges and accumulation of serous fluid in the 

 arachnoid sac. Accumulation in and around the cerebral 

 vessels of corpuscles of a special character. Small circum- 

 scribed spots of blood extravasation in various parts of the 

 body. Congestion of the mucous surface at the base of 

 the tongue and of the lining membrane of the abomasum 

 and bowels. Foreign bodies in the rumen. Blood dark 

 red, viscid, and imperfectly coagulable. 



Treatment. — Curative, ineffectual and dangerous ; there- 

 fore, except for experimental purposes, not to be attempted. 

 Prophylactic : when an animal has been bitten by a rabid 

 dog shave off the hair around every injury, and deeply 

 cauterise with the red-hot iron, or excise with a consider- 

 able part of the surrounding tissues. Nitrate of silver 

 and other caustics have been recommended in these cases, 

 but it is difficult to ensure application to all the wounds, 

 and especially to their depths. 



Diagnosis. — Rabies has been mistaken for phrenitis. 

 In the latter disease the wildness of the animal is perfectly 

 uncontrolled, but in the former there is a '* method in his 

 madness.'^ It also resembles mania puerperalis (which see). 

 The flesh of animals which have died from rabies has been 

 eaten with impunity, but ought preferably to be destroyed. 



It has been observed for a long time that even ordinary 

 febrile attacks become less severe towards midday, but 

 aggravated in the morning and at night. This we have 

 been accustomed to vaguely associate with the phases of 

 rotation of the earth, &c. Certain researches upon remit- 

 tent fever, which have been lately made by Dr. Manson and 



