26 ESSENTIALS OF VETERINARY LAW 



lutely prohibit, or it may supervise and regulate 

 a condition or a thing so far as it may seem to be 

 necessaiy for the good of the public. The laws of 

 New York give to the board of aldermen of the 

 city of New York authority to pass ordinances 

 regulating the keeping of dogs ; and to the board 

 of health power is given to publish additional pro- 

 visions for the security of life and health in the 

 city of New York, not inconsistent with the con- 

 stitution and laws of the state. The city did make 

 an ordinance regulating the presence of dogs upon 

 the streets and in public places. Thereafter the 

 board of health published an additional regulation 

 requiring muzzling, and the action of the board of 

 health was attacked on the ground that the power 

 of the city having once been exercised in the 

 ordinance passed by the aldermen, the board of 

 health could not make additional regulation of the 

 subject The court held that such a construction 

 would so seriously interfere with the jurisdiction 

 of the board of health as to make its power to pass 

 health regulations very difficult, and the public 

 health would thus lack the protection desired.^ 

 In other words, whenever the state or city grants 

 certain privileges, it does so with the implied 

 understanding that the parties favored will not 

 use their privileges to the injury of others. Neither 

 city nor state will permit a nuisance. 



16. No Property Right in Articles Acquired or 

 Used Contrary to Law. There is no property 

 right in things made, acquired or used contrary 



4 People ex rel. Knoblauch v. 

 Warden of City Prison, 153 N. 

 Y. Sup. 463. 



