DISINFECTANTS. ANTISEPTICS . 183 



Burnt lime per lb. $0.08 



Creolin per lb. .65 



Lysol per lb. .67 



Carbolic acid per lb. .15 



Corrosive sublimate per lb. .69 



Tannoform per oz .35 



Iodoform per lb. 4.55 



Protargol per oz. 1.25 



Aristol per oz. 1.80 



Ichthargon per oz. 3.00 



Properties of Disinfectants. — The results of disinfection will depend upon 

 other factors of importance. These include the quality and purity of the 

 disinfectants. When calcium chloride is stored its chlorine content decreases 

 and it finally becomes ineffective. Burnt lime, when exposed to the air, 

 is gradually changed to the ineffective calcium carbonate. Calcium chloride 

 and burnt lime must therefore be used in as fresh condition as possible. In 

 regard to creolin, Henle and von Behring have demonstrated that the German 

 creolin, in contrast with the Enghsh creolin, possesses no disinfection action 

 worth mentioning. Finally, an effort should be made to carrj' out every 

 disinfection with as little inconvenience as possible, avoiding all unnecessary 

 disturbance of agricultural operations. 



2. DISINFECTION FOR INFECTIOUS ANIMAL DISEASES 



General. — Disinfection for the different infectious diseases of 

 animals is regulated by the German veterinary sanitary law of 

 June 26, 1909 (Supplement A to the instructions of the federal 

 council of December 25, 1911), the law of February 25, 1876, 

 concerning the spread of infectious materials by the transporta- 

 tion of cattle over railroads, and the regulations of the federal 

 council based on this law and issued June 20, 1886, with the 

 modification of July 26, 1899 (the disinfection with 5 per cent, 

 carbolic acid solution is not only required, as formerly, for anthrax, 

 rinderpest and foot-and-mouth disease, but also for glanders, 

 swine plague and hog cholera) ; also by the more recent regulations 

 with reference to fowl cholera (February 2 and July 4, 1899) and the 

 announcement of the federal council of July 16, 1904 (substitution 

 of a 3 per cent, solution of the cresol-sulphuric acid mixture for the 



