THE WATER-SUPPLY OF TOWNS IN THE TEOPICS 



WELL No. 5 

 Temperature of water varied Ijetween 27-5 and 27 -'J' C. usually was 27-8° C. 



Sic 



Strata cut off 



by 



cement 



Average colony 



count 



per 1 c.c. 



B. coli 

 ' Flaginac'' 



Chromogenic 



sugar-fermenting 



bacillus 



March 9, /09... 



,, 11, /09... 



„ 12, ;09... 



,, 13, /09... 



,, 14, /09... 



,, 15, /09... 



„ 18, /09... 



,, 20, /09... 



„ 21, /09.,. 



„ 22, /09... 



„ 23, /09... 



,, 25, /09... 



„ 26, /09... 



„ 27, /09... 



,, 28, /09... 



+ 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 



74 



10 



? 



? 

 ? 

 ? 



101 



? 

 77 

 26 



8 

 11 

 15 

 15 

 27 



+ 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 



WELL No. 6 

 Temperature of water varied between 29' 5 aud 30" C. 



