THE PRELIMINARY SURVEY 135 



5. Screen your windows and doors with a fine-mesh 

 (No. 18) copper-wire screen, the screen frame to fit 

 tight against wood strips at the back, to prevent mos- 

 quitoes getting in through the space between the 

 edge of the screen and the casing of the door and 

 window. If possible, sleep in the second story of the 

 house. If by chance there should be mosquitoes in 

 the room when you go to bed, kill them. 



6. Obey carefully the regulations of the Los Molinos 

 Land Company with regard to' the use of irrigation 

 water. These rules are made for your own benefit 

 and protection. Excessive or careless use of irriga- 

 tion water not only breeds mosquitoes which cause 

 malaria, but is bad for your land and your crops. 

 Too much water is as bad as not enough, and is un- 

 healthy besides. 



7. If you have to be out in the evening, and the 

 mosquitoes should be present, be careful not to be 

 bitten. If you have to go into a place where you 

 know the mosquitoes are thick, wear a veil and leather 

 gloves. 



8. If you have to sleep in the open where mosquitoes 

 are present, sleep under mosquito netting. 



9. Quinine is of as much use to prevent malaria as 

 it is to cure it. A good method is to take nine to 

 fifteen grains of quinine daily for three days, then take 

 no quinine for three days, and repeat as necessary. 

 If vou know that you have been bitten by a mosquito, 

 take quinine, and prevent having malaria. 



