Notes/Sketches/Additional Taxa : 



Pollution Index: 



PRA PTC No. 1 (*.U2- X 1 





47 

 1)2. 



HI 



ss 



PRA PTC No. 2 2g, 8 ! X 2 = 57-CeZ- 



+ 

 PRA PTC No. 3 M- 5 7 X 3 = <^3. 7J 



_ 2-57.9^ Divided By 100 = 



2.^7^ 



Siltation Index: 

 PRA Wavicula sp . 



PRA Nitzschia sp . 



PRA Surirella sp . 



is.q7 

 l4-. + 84- 



+ 

 — P 



So. 



