PATHOGENIC BACTERIA IX DIFFERENT WATERS 293 







I PfJ 3 

 5 2 1 



1 1 ii 





to os- 

 cS" ' 



itlfp 





w-S ~ = 



g 5 o 3 . 



J s o | 



"fg* 8 -7fo 

 3 =<i 3'3 { *-So 



glilli^slll 





r3 > - "3 -p ' 



