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Materials amd MIGHIOGS: Sica! bes Mo «oy BAG RR A POPE Sige & ace te Sees te oe le ] 
SAMA PEOCPAUTCS 5S oie SS ee Allans Fane cgi 5 Aue e Boo eed oD t+ BPle Ba eG ge 2 
Chemiteal Methoddiogy (40). Pasi 4 ooo te eee aed ee th Sema ee eS berry ot 2 
Possible PCB Interference with Insecticide Residues ie ee a, Se ie oes 2 
Reenvery Vales ao cp ty iets state hd Piece si "Sete el geen fe Sl PO Sct BE He i eee PS Ue Be 3 
Pegi clive Wire Woe Dich eRe ace IS thee eas totem acta A wd AT EET sR a1 cated ih 3 
Sohatietina i wast ricieites pie, An ohh ey citeectee Whe AU cto ena wie eee hows Pla Le eee eee a 3 
Residue Concentration and Change 0.07.86 ws elas ss ares va rales wade e aes 3 
PBPletiet Peeks ee tea cs eet Cad taal page IC or a> PTET 4 cate SRE erie, fos 3 
TONE ek ear hs geese he wg etl Nee Pete fog eae elie Ree ae Re PNY a Pete ie e 
HMeptachion Piste ths 6) Sc shoe cay 14 hes ey Ne Se, Shes + coer Be + a Wil ee 10 
Influence of Environmental Factors. 4:2. 320540 0Pra ase Fewe dl ban dee tae ees de. 13 
Seasonal Fluctuations of Residues in Earthworms ............... 00000020 e eee eee 13 
Acoli wlectisremtss Pee sence sd pro RR Tos 0. eget na a gus BoA ges h ERA oy 14 
FRESE eke ac, eee Oe eae are eR see oe tates ahi Pam thst chew ee epee Mizeetgnth taoes 14 
