Rabies and Hydrophobia. 321 



in which the pig would rise and grunt without showing any desire 

 to bite. 



Sows will sometimes bite or devour their offspring during a 

 paroxysm, yet nurse and care for the survivors during the 

 intervals. 



Emaciation, weakness, exhaustion, lethargy and paralysis ap- 

 pear early, the victim remains down, or, if raised, moves weakly 

 and unsteadily and no longer pays attention to noises nor blows. 

 Death may ensue from the first to the sixth day. 



Symptoms in Rabbits. Experimental cases in rabbits are now 

 very common and usually assume the paralytic or lethargic type, 

 there is weakness in the hind parts, advancing in a few hours to 

 paraplegia, the fore limbs may be used for a time while the hind 

 are flaccid and dragged, or the animal lies on the sternum 

 and belly with the head sunken and resting on the feet, or he lies 

 extended on his side, in a state of insensibility. In the early 

 stages he may still masticate, with froth collecting on the lips, 

 but there is difl5culty in swallowing. If a foot is pinched it is 

 drawn up often with a cry. The bowels are torpid though a few 

 small, round, hard pellets are sometimes passed or a little urine. 

 Incubation is shorter than in the dog., and the virus retains this 

 habit when inoculated on other animals. 



In the experimental cases in the Anti-rabic Institute in 

 St. Petersburg, Helman found that the rabbits inoculated with 

 virus from dogs having furious rabies, contracted furious rabies, 

 while those inoculated from Hie less furiojis type of street rabies 

 had the disease in the dumb form. 



Symptoms in the Guineapig . In this animal as in the rabbit 

 the disease has been mainly seen in the experimental form, and 

 has assumed the paralytic type. It trembles, moves stiffly or 

 weakly, lies most of its time and passes rapidly into paraly&is. 

 There is usually no tendency to bite, yet Peuch in a case of intra- 

 ocular inoculation from a rabid cat observed the most violent ex- 

 citement, loud hoarse screaming, bounding in different directions, 

 biting of the wires of the cage, and other manifestations of violent 

 rabies. In both forms there are liable to be convulsive movements 

 of the jaws, accummulation of frothy saliva, and a free discharge 

 of urine. 



Symptoms in Birds. Chickens bitten by mad dogs have been 

 21 



