2\-Z J. A. (iilrntJ, : 



i\'t aiiuil, tlu' rliift' ,sviiii)t<iiii l)i,Mii<; iiia!>iiity to move tlu' limbs oxcept 

 In- the iiiviiliiiitarv paddliiif,' i-ot'cricd to. At tht' end of tlio fourth 

 day no impiovc^ment and no ai,'»riiivation in f^^eneral symptoms 

 having taken place, except increasing weakness, V)ecaiisc of the 

 fjodsores and tlie absence of feeding, the pony was killed. 



l'i)sl-nn)rff'ii) examination was mmh the sanic in results as in 

 pi'evious cases, with the exception of some areas of l)roncho- 

 pneunionia. 



The ex/periiiiciiidl coir gradually became affected with tongue, 

 buccal, and pharyngeal paralysis. This cow made an admirable sub- 

 ject for experiment. For six months she had l)een kept (in conse- 

 (pience of another experiment) in a loose box along with a yearling 

 calf, and in the next box another cow had been kept for the same 

 period also with a yearling calf. During that period the four animals 

 liad all been fed on the same kind of fodder, i.e., dry chaff, hay, etc., 

 with no green feed, or exercise. Although, as will be seen, the cow 

 fed with the suspected chaff became affected with the paralysis, the 

 other cow and calf remained normal, and continued to do so while 

 fed on ordinary chaff, till killed two months latei'. Her own com- 

 panion had been destroyed prior to commencing the feeding experi- 

 ment. No symptoms of any abnormality whatever were detected 

 till tlie thirteenth day after receiving the first feed, or the sixth day 

 of continuotis feeding on suspected fodder. Then the cow was 

 noticed to 1)C less keen for food, and next day .seeiiied to chew each 

 mouthful for a mucii longer ))eriod than usual, without making any 

 attempt meanwhile to swallow. Although the day was wai-m, little 

 or no water was drunk. It is safe to .say that had a careful watch 

 not been kept ft)r some such evidence of disturbance, it would have 

 been overlooked I)y the attendant. On the third day of sitkness th^^ 

 condition was much tlie same, biit a thin trickle of saliva ran from 

 the mouth, and some mucoid looking discharge was present in the 

 nostrils. The fourth day brought improvement, and the cow seemed 

 practically noi-mal, but on the fifth day the aimless chewing an! 

 slight salivation had returned, while the expression Avas somewhat 

 strained. On the sixth day, the symptoms were for the first time 

 ycry suggestive of the cattle paralysis. Feed was refused ; the head 

 was held straighter than normal, the eycs appeared staring, 

 champing of the jaws wilh dril>bling of saliva was constant, occa- 

 sionally the tongui- i>rotruded in an ineffective way, but seldom was 

 an attempt made to lick the muzzle. On the seventh and eighth 

 days the symptoms Avere aggravated. Drinking Avas done sloAvly 

 and with much difficultT. On the ninth dav the condition Avas nnu^h 



