402 VETEEINAEY HYGIENE 



building, and placed at some height above the floor. It 

 may be conveniently generated by acting on bleaching 

 powder with sulphuric acid; for every 1000 cubic feet of 

 space IJ lb. of bleaching powder and 6 oz. of commercial 

 sulphuric acid are required. Disinfection by chlorine in 

 a dry atmosphere is most uncertain ; care should be taken 

 before starting fumigation to wet the walls and fittings 

 with water, in order to ensure the action of the gas, which 

 must be continued for several hours. 



Chlorine may be more effectually employed in solution, 

 8 ozs. of bleaching powder to 1 gallon of water. The walls, 

 stable fittings, and flooring, thoroughly washed with a fresh 

 solution of this substance may be considered moderately 

 safe, though it is recommended that two or three washings 

 should be given to ensure absolute destruction. 



Washing with chloride of lime water is here recom- 

 mended, for the reason that it is a disinfectant readily 

 obtained, and undoubtedly of great value if made from 

 fresh material, and used when made. It should also enter 

 into the ordinary discipline of stable and cow-shed cleaning, 

 not once a year but once a week. It is not, of course, 

 necessary, except in cases of disease, that the whole place 

 should be done out weekly, but the walls over and under 

 the mangers, the flooring, and fittings might, especially in 

 the case of industrial stables and cow-sheds, receive a 

 weekly washing, and this is best effected by doing a certain 

 amount every day. 



This should be the system in all veterinary hospitals, 

 and for this purpose a small staff should exist, the duty of 

 which is to carry out the daily disinfection of a part of the 

 hospital, the system being so arranged that the disinfec- 

 tion of each place is carried out weekly. 



Sulphur as sulphurous acid has been a popular disinfec- 

 tant for many years, but it is unnecessary to consider it 

 here, as experimental enquiry has shown that it is a very 

 uncertain and very inferior agent for this purpose. 



Mercuric Chloride stands at the head of all disinfectants 

 for certainty and rehability. A solution of 1 to 1000 in 



Digitized by Microsoft® 



