FOOT-AND-MOUTH DISEASE. 391 



especially applies to dogs, cats, goats, and poultry, which usually 

 have access to the stables and barnyards and in this way furnish 

 excellent means for disseminating the infectious principle. He 

 should be equally particular in prohibiting any person from coming 

 onto his premises, especially an attendant or owner or other person 

 in any way connected with cattle. Such a herd may be placed under 

 quarantine, with an inspector appointed to keep the premises under 

 constant surveillance. 



This method of quarantine alone, while very satisfactory in many 

 instances, is rather tardy in obtaining the desired result. The 

 experience of European Governments already mentioned shows that 

 eradication by this method alone, when the disease has obtained a 

 foothold, is practically impossible. For this reason, when the disease 

 breaks out in a country like the United States, where the contagion 

 is likel}^ to spread rapidly by means of infected cars, manure, hay, 

 and other feed, and where the results of its obtaining a firm foothold 

 would be so disastrous, it seems that this method of temporizing is 

 rather tedious, and more radical steps are required in order to sup- 

 press and eradicate completely the infection in the quickest and most 

 thorough manner possible. 



It would therefore appear better, after judicious appraisement, 

 to concentrate the expense incident to the extermination of foot- 

 and-mouth disease by purchasing and slaughtering all affected and 

 exposed cattle. The carcasses of these animals should be totally 

 destroyed, preferably by cremation, or otherwise by burying them 

 in a hole 6 feet deep and covering them with air-slaked lime. The 

 infected stable should be disinfected by thoroughly cleaning it, 

 scrubbing the floor with hot water, brushing down all loose dust 

 from the walls, and tearing off all woodwork which is partly de- 

 cayed. Then the whole interior of the stable should be disinfected 

 with one of the following substances: 



A 5 per cent solution of pure carbolic acid. 



Chlorid of lime, U. S. P. strength (30 per cent available chlorin), 

 1 pound to 3 gallons of water. 



Formaldehyde, 1 quart 40 per cent solution to 5 gallons of water. 



A 3 per cent solution of cresol compound, U. S. P., or accepted 

 substitute therefor, containing at least 50 per cent cresylic acid. 



All stable utensils should be thoroughly cleaned and disinfected 

 by the application of a solution of one of the above-named dis- 

 infectants. The manure should be burned or disinfected and spread 

 over ground (other than meadow land) that is to be turned under. 

 No other cattle should be purchased for at least sixty days after 

 the complete disinfection of the premises. 



The success in eradicating the disease by combined quarantine, 

 slaughter, and disinfection, as practiced in the United States, Den- 



