422 SCIENCE OF HOME AND COMMUNITY 



In the southern states, where malaria and yellow fever are 

 found, the board of health should take measures to control 

 the mosquito nuisance. Some of the means by which this 

 may be done have been explained in a previous chapter. 



As an example of what is being done, the following quota- 

 tions are taken from a list of city ordinances relating to 

 public health, passed in a city of 10,000 population. 



PURPOSE OF THE DEPARTMENT OF PUBLIC HEALTH. 

 "Section 6. The department of public health shall exercise 

 general supervision over the health of the city. It shall 

 make such investigations and reports, and obey such direc- 

 tions concerning communicable disease, as the State Board 

 of Health of the State of Minnesota may require or give, 

 and under the general supervision of the State Board of 

 Health, it shall cause all laws and regulations relating to the 

 public health to be obeyed and enforced."' 



DUTY OF THE PEOPLE. " Section 8. Every person in 



the city of shall observe and obey each and every special 



regulation and every order of the department of public 

 health that is or may be made for carrying into effect any 

 of the provisions of this or any other ordinance of said city 

 relative to the health thereof, or any law of this state or 

 otherwise, whether issued directly by such board, or pro- 

 mulgated by the health commissioner." 



DUTIES OF THE HEALTH COMMISSIONERS. " Section 10. 

 The health commissioner shall be president of the depart- 

 ment and shall have and exercise a general supervision over 

 the sanitary conditions of the city. He shall give the council 

 and the department of public health all such professional 

 advice and information as they may require, for the purpose 

 of preserving the public health. He shall investigate the 

 existence of any communicable or pestilential disease and 

 adopt all measures necessary to arrest the progress thereof." 



" He shall enforce all laws of the State, and ordinances of 

 the city, in relation to health and sanitary conditions, and 



