

CARCINOMA OF THE THYROID IN SALMONOID FISHES. 

 \ 



429 



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1 r" 



Poncf / 



Pond II 



30 



~20 



-^^o 



u 



30), 



^zs r 





ss 



<Jr 



60 



■j± r 



1 



5 



W 



-*'* r- 



Areas. 60 nr'" 



Sis 



1 



C/oseel 



30 





P,V 



],83 



.^> , 



—~/7 f 



[ 



rOE^^ 



/o 



^ 



«s 



^ 



ol> 



95 



^. 





IZ 



13 



U 



IS 



16 



17 



la 



"? 



To <///c/^ 



JO 



Zl 



]5 



YlQseci 



IS 



To /otrer 



Fig. 78.— Plan of ponds, Craig Brook station, showing water supply. 



