HYDROCEPHALUS HYDATIDEUS. 321 



Prevention. In stormy M^eather, and when they have 

 been feeding upon turnips, particularly where fenced in, 

 remove them to pasture a little elevated, and as sheltered 

 as possible from the storm, until the weather improves, 

 and the turnip or other fields become drier ; place common 

 or rock salt in covered troughs, which will tend to keep 

 their bowels open. Salt is a good laxative for cattle and 

 sheep. 



Diarrhoea. — Treatment. Powdered opium, two grains; 

 powdered gentian and powdered ginger, one drachm each ; 

 mix. To be given in an infusion of linseed, and repeated 

 if necessary. 



Hydrocephalus Hydatideus, Sturdy, etc. — A 



singular disease ; a very prevalent and fatal one, if left to 

 run its course; so much so, indeed, that in France alone, 

 no less than one million sheep die yearly, or are destroyed 

 by this pest of the ovine race. The symptoms by which 

 this disease is accompanied are as follows : In the com- 

 mencement, the animals will be observed to stop in the 

 midst of their grazing, and then start away in a gallop 

 over the field. They seem at times to be utterly uncon- 

 scious of where they are, separating themselves from the 

 rest of the herd. By-and-by they become dull, and have 

 a peculiar staggering gait. If there is a brook or rivulet 

 within their reach, you are almost sure to find them 

 standing by it, apparently becoming giddy, not unfre- 

 ^uently tumbling in, and thus being lost. They lose flesh, 

 the countenance becomes haggard, and subsequently, the 

 animals thus affected commence a rotary motion, going 

 round and round in the same direction, with the head 

 inclined to the same side of the body. Now it almosf 

 ceases to feed or ruminate, as it cannot restrain the rotary 



