Document Lg61Qm8ZnjJybMwvgooM144og

II R . Richard - Here r> |-J r j r . v . January l, 1963 cc ci'.r.opj;t.:tv:d ?tv o r c Ca :;-OKS R;jsi:yK ja CuL uS rh'.i) v l .iioj:.; KftJkft m b ftkftcifo A. Hcinlngcr to CLA and KR 1AV68 C. E. Ar.agnostopoulo S -- CARAC ft. 5. Rob;:on R. ft. jVLl^or ft. D. ho.vmar V7. K. Johnson R. S. Killy/ 17. h. Hunt n. M. Parks }i. E, Keller * T. K. Smith Jr. E. Wilde C. Paton if-ig kt\ .4 % ]-I.*vV 1 u \ *- * 1 ^ 4 Ta i.Vl***./:T Jk-1 ETIT.D I calDec; Mr. Francis Coon at the Wisconsin Alurr.nl Research Foundation. Mr. Coon is exam iuing tissues from shore birds for trace quantities cf pesticide resi dues. Previous results had given unidentified peaks In gas chromatographic analysis. Following the work reported by Jensen and Uidr.io.rk at U. of Stockholm and by Holmes, Simmons, Tat ton (nature 2 l 6 ? S . 2 2 7 , 19&7) he is reexcnlining tissues up to 4 yearn old tc see if the un!:nov:n peaks are chlorinated biphenyls or chlori nated terphenyls. The customer in this case is Director of Wildlife Research, Dept, of Interior. Valter V. pykstra is one of the top men. Mr. Coon indicated that the Division of Wildlife- Labora tories, Dapt. cf Interior, had been working with Aroelor 1 ^? . 1 ftr.d . !; r e n u n r - t e d f v f i- `1C.h y . quantities of the same materials which I agreed to send. Kb v:cc told these were not pure compounds but contained numerous isomers of chlorinated biphenyl and terphenyl. These villi be used as standards in gas chromatograms using electron capture detection to compare with un- kr.ov.Tia from tissues. Mr. Coer, said he was also v;orIcing for other customers cn this same subject but he declined to name v:ko they were. He also said v;e should expect a publication or. this same subject oir.inating from California. He had read this unpublished report. Mr. Coon vrlll discuss results with us from time to time provided they do not conflict with the interests of his clients. V. R. Richard i.::; NEV 031090 780628