MacGREGOR: AMOUNT AND PROPORTIONS OF DDT 





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^CM-f-oir- cDiococM'- oooinoio 

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^^'-'-'- CvJCMCMCMCM COCOCOCOCO 



uiCT^ojoo 00000 ooinoin 



CNJCMCMCOCO COCOCOCOCO COCMCMCM^ 



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CM CM CM CM CO 



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CM ^ in (D CD 

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mcDcDf^f^ h-r^cococo comocoo 



00000 00000 OCOCD^CO 



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COCOCOCOCO COCOCOCOCO COCOCOCOCO COCOCOCOCO COi-OOO 



d ' ' ' " 



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—'--' ^— —' ^^ -— --^ -—-^ y-^ ^^^T-^^ .^^^.^^f^ CNJCMCMCMCM 



C7)<5i-cMco Trincor-co C7>Oi-cmco TrmcDr^co o^Oi-cmco 



^inminin minminin incDcocoto cocdcocdcd cDr-f^r--p^ 



O Oi <Ti Oi Gi <T> <yi (J> O) O <J) G) <J) (J) (Ji O) Oi a U) (J) <J) Gi CT> O) <J> 



287 



