SUtSTANCE I 



C 



STAH 



1cm. 



-e- 



II 



C 



II 



D SOLVENT 



Rt 



Rl 



Rl 



Rt 



I 



Rt 



Rt 



Rl 



Figure 2. — Descending paper chromatograms of toxins (see table 6). 



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U.S. FISH AND WILDLIFE SERVICE 



