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gravitate unhindered to the head, collect in the nose and 

 when the head is raised, which occurs periodically, the 

 fluid flows back to the pharynx, thence between the 

 paralyzed vocal cords and down the wind pipe to the 

 lungs. Ordinarily this would cause violent coughing, 

 but the cow is not now capable of the act. However, in 

 fatal cases, when the wind pipe is opened after death, 

 particles of food are found adhering to the surface of 

 the inflamed mucous membrane. Tlie rattling, gurgling 

 sounds just referred to should be distinguished from 

 sonouous vocal sounds emitted by animals when no fluids 

 have been allowed to come in contact mth the vocal 

 cords. These sounds are low and moaning, and are due 

 to the vibrations of the relaxed vocaJ cords during ex- 

 piration. 



Sensibility has disappeared, the animal no longer re- 

 sponds to pin pricks. A better test for the comatose 

 state, however, is to place the finger nn the eyeball: If 

 the eyelids do not close the animal is insensible. Res- 

 pirations are slow and indicate deep sleep. Tempera- 

 ture normal or below normal. 



• Course — The disease appears one, two and rarely three 

 or four days after delivery. The sooner the more serious 

 will be tlie consequences. 



Taking a case of average severity, the couse will be 

 about as follows : One-half hour after the first symp- 

 toms, which are seldom observed, appear, the cow is 

 staggering, bellowing and falling; a half to one hour 

 later she is down, but able to make efforts to rise; one 

 to three hours she lies in a semi-conscious condition, 

 then passes into a state of coma. In order to test 

 whether the cow is conscious oft'er to put the finger in 

 the eye, if the eye is not sensitive to the touch, the coma- 

 tose stage is reached. Coma persists six to fifteen hours 

 in favorable cases, or in fatal cases, until death, which 



