292 Veterinary Medicine. 



Disinfection of the buildings and contents may be made 

 by thorough cleansing, the removal of all rotten wood, the ex- 

 posure of hollow wooden walls by tearing off the boards on one 

 side, and then applying thoroughly a whitewash made of recently 

 burned caustic lime, adding to every gallon of the mixture ^ lb. 

 of chloride of lime. Copper sulphate (5 : 100) or sulphuric acid 

 (2:100) are excellent disinfectants but do not show so well as 

 the whitewash when any portion has been imperfectly done, or 

 omitted altogether. Even after a thorough disinfection the dis- 

 ease may continue to appear in the same building, suggesting 

 the presence of the germ in some of the cows, perhaps in the 

 alimentary canal or genital passages to plant the infection anew. 

 In other cases the removal of the infected animals and the 

 thorough disinfection of the building have put a prompt and 

 permanent stop to the disease. 



Treatment. Every effort should be made to limit the exten- 

 sion of the infection to vital organs, and as the blood in the um- 

 bilical vein forms an excellent culture medium to discharge fresh 

 supplies of the microbe and its toxins into the system, it is 

 sometimes possible to disinfect this in recent cases in which a 

 small pledget of cotton on the end of a staff can still be intro- 

 duced into the open end of that vessel. The pledget, soaked in 

 a 5 per cent, solution of carbolic acid, is passed as far up toward 

 the liver as the vein will admit and the infecting bloody con- 

 tents removed. 



Elimination by the bowels and kidneys has been sought by 

 giving daily ij4 oz. cream tartar and i dram bisulphite of soda 

 to a calf. Or salicylic acid or salicylate of soda or even quinine 

 may be employed. The stomach should not be overloaded by 

 too heavy a feed. 



Inhalations of oil of turpentine, sulphurous acid or other anti- 

 septics can be tried, but with no great hope of success. Bass 

 claims excellent results from injection into the trachea of the calf 

 oi 2j4 drams daily for eight days of a mixture of iodine, i part, 

 iodide of potassium, 5 parts, and water 400 parts. For lambs 

 and pigs }4 dram of the same preparation may be used. 



Treatment is, however, too often unsuccessful and therefore 

 prevention must be our main object. 



