DISINFECTION. 403 



essentially the same lines as the stable. Everything must be 

 first cleaned as thoroughly as possible, and then all woodwork 

 may be washed with corrosive sublimate, or better, with a 

 three- to five-per-cent. solution of carbolic acid. These solu- 

 tions must not be used for washing the vessels which contain 

 milk. For cleaning these vessels nothing but boiling hot 

 water or steam are legitimate. After the disinfection of all 

 parts, the whole must be washed with water. If the dairy is 

 capable of being closed tightly, the disinfection mentioned may 

 be followed by the use of sulphur or formalin, as described 

 below. 



Other localities inhabited by animals. To disinfect the barn- 

 yard in which cattle are allowed to roam, is practically an im- 

 possibility, and the same thing is true of the pig pen. The 

 amount of moist material accumulated in these localities is so 

 great as to make disinfection impractical by any means yet 

 devised. We must make the same statement in regard to 

 pastures where infected cattle are allowed to roam. To disin- 

 fect a pasture is an impossibility ; it must be left to the action 

 of sunlight and rains, and these will, in the course of time, com- 

 monly produce the disinfection. 



The Sick Room. In every person's household it becomes 

 occasionally necessary to disinfect the room in which persons 

 suffering from contagious diseases have been confined. To 

 discover a practical and satisfactory method of such disinfection 

 has been very difficult, but the following procedure is the best 

 that has as yet been devised. Carpets, curtains and bedding, 

 must be removed and treated as above mentioned. All sur- 

 faces of the room, including floors, walls and surfaces of furni- 

 ture, must be washed with a solution of corrosive sublimate, 

 i-iooo. This disinfectant should be used freely, and espe- 

 cially should be allowed to run in all cracks and crevices that 

 there maybe around the room. If the corrosive sublimate can 

 be thus thoroughly used, the room is satisfactorily disinfected ; 



