VIII. B, 6 



Barber: Examination of Artesian Wells 



453 



Table XIII. — Water from well near schoolhouse, Montalban, Rizal Province. 



Sample taken March 28, 1913 ; water, sweet to taste ; temperature, 27° C. ; atanding water 

 in a ditch about 6 meters away ; depth, 23 meters ; in use since May, 1909. 



Amount of water sown. , 



Nutrient medium. 









Result. • 









45 hours at 86°. 



3 days at 36°. 



6 days. 



i 



2 



< 



2 c 



1 



■ -6 



a 1 ■« 

 O < 



s§ 



I'D 



■22 



1 



CQ 



a 

 O 



73 



=1 

 ai 



1 

 ! ee. 



; 0.1 

 : 1 



6 



1 



5 



6 



1 



; 5 



' 



1 

 1 1 



1 6 



1 1 







 



iS 







-l- 





 

 





 

 







+ 



+ 

 -1- 



(") 



-1- 

 + 

 + 

 + 



(b) 

 



(") 

 1? 





 

 iS 

 



+ 





 











+ 



+ 

 + 

 + 

 + 

 -t- 

 + 

 (b> 





 







+ 





 

 

 



+ 



1 



+ 



+ 

 + 

 + 

 + 

 + 

 + 



(b) 

 + 1 



+ 



do — 



do . 





do - 



do 





do 



Litmus-lactose agar -- - -- 



Bile-lactose agar . . 







do - -. 











1 1 











» Amoeba test negative. 



b Many colonies present. 



Table XIV. — Water from well on Arangu Street, San Mateo, Rizal 



Province. 



Samples taken March 18, 1913 ; water, brackish ; temperature, 27°.7 C. ; standing water 

 from a drain at edge of well : depth, 46 meters ; in use since April, 1909. 



i 



Nutrient medium. 









Result. > 









1 

 1 



■< 

 1 



45 hours at 36°. 



3 days at 86°. 



6 days at 86°. 



1 



< 



11 



a-i 



i 



'3 

 <! 



It 



11 

 ai 



00 

 09 



'S 



< 



.2 



a-3 



1 



ee. 

 0.1 



Glucose-broth fermentation tube 





 



i§ 







+ 





 

 

 

 















+ 

 -1- 



(b) 



+3 

 (b) 



+ 

 + 

 + 



1 





 



n 







+ 





 

 

 

 









+ 

 + 

 + 



+ 



+ 





 



a 







+ 





 





 

 



... 











+ 

 + 

 -t- 

 + 

 (d) 

 + 

 



+ 

 + 



1 



.do 



6 



do 



1 



Glucose agar 



5 



do-- 



1 



Plain agar 



5 



do 



& 



Litmus-lactose agar - . _ -_ 



iiliKtat 



+ 



1 



Bile-lactose agar 





+ 

 + 



6 



do 



1 

























■ Amoeba test negative. b Many colonies present. 



4" 6 or more. * -f- 10 or more. 



