Heise: Crater Lake of Taal 



253 



waters from Taal Volcano. 

 100 cubic centimeters except as noted.] 



Year. 



1907 



loo; 



1907 



1911 



1917 



1917 



Bacon' 3 '.. 



Boiling crater 

 lake. 



Light grayish 

 green. 



Bacon' 3 ' 



Green pool, 

 north of boil- 

 ing lake. 



Bacon' 3 ' 



Green Lake.. 



Green 







Lake Bom- 

 bon (parts 

 per mil- 

 lion).d 



Nil. 



Nil. 



1540. 

 75. o 

 10. 



0.14. 



0.95. 



64. 



50. 



'580. 



194. 



Stream 



Crater Lake<=. 











" 



1.335N... 



1.78N 



0.0069N 



0.0147N 



0.0100N 







"" 







8.576 



















"" | 







0.0025= 



0.0410* 



! ;;;;;;;;;; 





0.07108— 







0.5157b 



0.9210 b 



0.8367 b 



0.0843b 



1.3446b 



0.01720 - 



0.0135 















0.00799 



0.00261 



0.05568 



0.09093 



0.25843 



0.02374 



0.60243 







0.8978 b 



0.2082 b 



0.4343 b 



0.7192b 



0.0048b 



4.8925b 



2.0927b 



0.1328 b 



0.1514b 



2.3246b_ 



0.0104 b 



10.9312 b 



0.0086 



0.0860 



0.2650 









0.0125b 





1.830.... 



Trace 



0.00005. 



0.330 















1.9688b 



2.3542 b 



0.27320 





2.1171b 



0.8284b 







0.6000s 







None 









Small 



do 



















' Determined turbidimetrically. 



f Determined by evaporation with hydrofluoric acid. 



* Loss on ignition. 



