Contagious Diseases and Their Suppression. 275 



tigations of Profs. ISTocard and Mettam indicate the navel 

 as the point at which the germ enters, causing this 

 trouble. In addition to the treatment outlined, dress 

 the navel after tying the navel cord, with the following 

 solution: Eain water If pints, Iodine 31 grains (by 

 weight, ) Iodide of Potash 62 grains (by weight, ) apply 

 with a brush, to be followed with a dressing of this solu- 

 tion Methylated spirits If pints, Iodine 32 grains, after . 

 this has dried paint the cord and navel with a thick 

 layer of collodion and iodine 1 per cent., when dry leave 

 to the care of the dam; other good antiseptics will be 

 useful in case those mentioned are not obtainable. The 

 following powder is highly thought of by some veteri- 

 narians: 



Powdered rhubarb root 1^ drams. 



Powdered opium i dram. 



Powdered carbonate of magnesia \ dram. 



Give as one dose in a couple of ounces of brandy and 

 white of egg. Sub-nitrate of bismuth in appropriate 

 doses is a very valuable drug in cases of digestive 

 troubles. 



Cow pox is of interest to the general public owing to 

 the adoption of Jenner's vaccination of human beings 

 with the lymph of cow pox as a protection against small 

 pox. The stockman is also interested from the fact of 

 its contagious nature, often rendering cows extremely 

 hard to milk, due to the soreness of the teats, and its 

 causing a diminished milk supply. The eruption is 

 usually confined to the udder and teats, the latter show 

 pink pimples, which later become reddish vesicles; as 

 many as twenty or thirty may be present, varying in size 



