LIGHT OF DIFFERENT WAVE-LENGTHS BY FISH 



51 



CQ 



< 







^ ^^ - 

 ^ "-■ t-i 



+-> CAl rG 



oj a; ^ 



r^ );i V) 



o (S rn 



O '^ 

 CO 



CD 



Oh^ 



o 



s 



^ 9 



<D tn ^H 



^^ O O 





8 XI 3 ^ 



CD O -^ 



a 



CD 

 3 





CD 



