174 ESSENTIALS OF VETERINARY LAW 



evasion of the law, and get his product into con- 

 sumption in some other place or way. 



125. Veterinary Authority in Milk Industry. 

 A veterinarian's governmental authority cannot 

 extend beyond the limits of the authority of the 

 body under whom he has been appointed. (§99.) 

 The foregoing outline shows that the authority of 

 a veterinarian in the conduct of the milk business 

 is very slight and inconspicuous, as compared 

 with that of other inspectors. As a city employee 

 he has no authority outside of the city by which he 

 has been appointed, and in the dairy district he 

 acts in an advisory capacity. Of course his advice 

 as to the condition of a dairy may cause the city 

 to refuse the product of the dairy. A state veteri- 

 narian has authority within his own state, and his 

 advice may enable the state officers to exclude milk 

 from certain outside territory. The veterinarian 

 employed by the federal government has no 

 authority except with regard to products intended 

 for interstate or foreign shipment. 



126. Dairy Products. It is now known that the 

 germs of tuberculosis and typhoid fever may 

 remain viable for a time in butter and cheese. The 

 aging of cheese before sale tends to lessen the 

 danger in that article from those bacteria, but it 

 is liable to another infection with a highly poison- 

 ous germ — tyrotoxicon. These daiiy products are 

 frequent and extensive subjects of interstate com- 

 merce, and to a smaller degree they enter foreign 

 commerce. It is practically impossible to effi- 

 ciently supervise the commerce without attention 

 to the manufacture. It is entirely within the 

 authority of Congress to enact reasonable statutes 



