OBEDIENCE TO AUTHORITY 161 



measures to be followed, the co-operation of every 

 householder is necessary. That given, the people may 

 confidently expect a speedy release from the trying 

 conditions in which they are now placed, and from 

 apprehension of its recurrence in the future. 



I, therefore, as Mayor, urge all citizens and house- 

 holders to render cordial and ready obedience to the 

 instructions which may from time to time be given by 

 the Health Authorities, and to render every aid within 

 their power to those Authorities in the earnest efforts 

 which they are now making, and in which they will 

 persist for the absolute stamping out of this infection. 

 Those instructions are not difficult of performance ; 

 they are easily to be understood, and can be followed 

 with but little expense. Since the consensus of sanitary 

 and medical opinion of to-day is that the infection 

 of yellow fever is transmitted, or can be transmitted, 

 only by means of the sting of tlie insect known as the 

 " cistern mosquito," the following advice recently given 

 by Dr. Kohnke, the City's Health Officer ; by Dr. 

 Souchon, President of the State Board of Health ; Dr. 

 White, Surgeon of the U.S. Marine Hospital Service, 

 and an Advisory Committee of the Orleans Parish 

 Medical Society, should be willingly and implicitly 

 obeyed by every householder in this city. 



1. To keep empty all unused receptacles of water 

 in every house, and allow no stagnant water on any 

 premises. 



2. To screen all cisterns after placing a small 

 quantity of insurance oil (a teacupful in each cistern) on 

 the surface of the water. 



3. To place a small quantity of insurance oil in 

 cesspools or privy vaults. 



4. Sleep under mosquito nets. 



11 



