IX, A, 4 Cox et al. : Water Supplies in the Philippines 403 



springs and other sources as noted — Continued. 

 parts per million.] 



Laboratory No. 



31228. 



51255. 



118570. 



116154. i 



June, 1906 



February, 1908 



May, 1914 



September, 1913. 

 Misamis, Camiguin. 



Spring Coot, Catar. 

 Normal. 



348.4. 



109.7. 



Trace. 



270.2. 



Nil. 



Trace. 



Trace. 



1.04. 



4.41. 



1.7. 



51.1. 

 15.8. 

 6.9. 

 22.2. 



431. 



Manila 



Laguna, Los Banos 



Mindoro, Puerta Ga- 



lera. 

 Hot springs 







"Isuan" 







Alkaline . 



Slightly alkaline 



215.4 







44.7 



161.4 



26.99 



79.7 





578.9 



976.0 



191.54 







38.1 





1.195 







Trace 













Trace 





3.9 



Nil 





367.5 , 



Nil ... 



518.0 - 





Nil _ _.. 





4.7 















1.25 



Nil 





Trace... 





NiL 







Nil 





16.4 



90.35 .. . 



169.7 



5.4 



19.30 



217.6 



2.3 



30.8 



355.1 . 



8.0 



198.2 



0.24 



2.944.7 







0.023 







42.83 

















Tap water 



(«>) 



(«) 





•• Thermal, sodic, calcic, bicarbonated, alkaline-saline, siliceous. 



° Odor of hydrogen sulphide ; contains organic matter. 



■> Calcic, bicarbonated, alkaline, sulphureted, carbon-dioxated. 



« Hydrogen sulphide, 0.48 ce. per liter. Gases determined in laboratory ; probably low. 



