THE COW IN HEALTH AND DISEASE 45 



of formalin for each 1,000 feet of space. The 

 permanganate should be placed in a metal ves- 

 sel and then set in a metal tub partly filled with 

 water, then the formalin should be poured in 

 with potash. The operator should not be long 

 in getting away from this solution as it produces 

 a very strong gas that is very hard on the eyes ; 

 it should be watched through a window or crack 

 for a few seconds to see that it does not take 

 fire. The building should be closed for 24 hours. 



One ounce of bichloride of mercury to 8 gal- 

 lons of water is strong enough to kill any of the 

 disease germs when used in sufficient quantities. 

 Care must be taken as it is very poisonous. 

 Creolin or any of the coal tar disinfectants should 

 be used in about 5 per cent solution of water. 



Take about 100 pounds of quick lime and 60 

 pounds of water and slack it, this forming hydrate 

 of lime; of this take 1 part to four parts of 

 water, which should be hot, and after straining 

 apply with a spray pump. One pound of the 

 chloride of lime to every three or four gallons 

 greatly increases its value. 



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