104 HOUSEHOLD IX SECTS 



China berry trees, which have also a reported charm 

 against mosquitoes, have been shown to be worthless as 

 repellents for these insects. 



RULES FOR THE PREVENTION OF MOSQUITOES 



The following measures against mosquitoes for the pre- 

 vention of yellow fever published in 1906 by the Public 

 Health and Marine ^Hospital Service are so authoritative 

 and so much to the point that it seems eminently worth 

 while to publish them here : — 



HOW TO PREVENT YELLOW FEVER — NO MOSQUITOES, 

 NO YELLOW FEVER 



Treasury Department, 

 Bureau of 

 Public Health and Marine Hospital Service, 

 Washington, July 31, 1905. 



Note. — The measures herein mentioned were recommended by 

 the Army medical board of 1900, and have been indorsed by the 

 American Public Health Association and by the First International 

 Sanitary Convention of American Republics. They have also been 

 justified by the experiences and observations of the two working 

 parties of the Yellow Fever Institute of this Bureau in Vera Cruz, 

 Mexico, and by the commission of the Pasteur Institute of Paris, 

 France, operating in Rio Janeiro, Brazil. The measures have been 

 tested successfully on a large scale in Havana, Cuba, and during the 

 yellow fever epidemic at Laredo, Texas, in 1903 : 



THE INFECTION OF YELLOW FEVER IS CARRIED BY MOSQUITOES, AND 

 BY NO OTHER MEANS IS THE INFECTION SPREAD. 



PERSONS TAKE THE DISEASE BY BEING BITTEN BY MOSQUITOES THAT 

 HAVE PREVIOUSLY BITTEN A YELLOW-FEVER PATIENT. 



