12- 



lO- 



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Z 4- 



\ 



S*ua«r IX] 

 Wdlay* a 



no 



S 

 S 



260 



Langth Imml 



Finure 17. Lenqth-fronnencv distribution of saunor and v/alleyo collected 

 sprinq, 1070, in lleaver Creek. 



n- 



