1. Embryotoxic and teratogenic effects in unhatched fertile eggs from hens fed polychlorinated biphenyls (PCBs)

   • Helene C. Cecil
   • Joel Bitman
   • Jacqueline Verrett

   OriginalPaper Pages: 489 - 495

2. Effects of nonpersistent pesticides on liver weight, lipids and vitamin A of rats and quail

   • Helene C. Cecil
   • Susan J. Harris
   • Joel Bitman

   OriginalPaper Pages: 496 - 499

3. Bioactive compounds in the aquatic environment loss of methoxychlor from autumn-shed leaves into the aquatic environment

   • S. KroghDerr

   OriginalPaper Pages: 500 - 502

4. Chlorinated insecticide residues in the eggs of some freshwater fish

   • Lauren G. Johnson
   • Robert L. Morris

   OriginalPaper Pages: 503 - 510

5. Effect of external application of pesticides to the fertile egg on hatching success and early chick performance 3. Consequences of combining 2,4-D with picloram and extremes in contamination

   • J. D. Somers
   • E. T. Moran Jr.
   • B. S. Reinhart

   OriginalPaper Pages: 511 - 516

6. Residual organochlorine pesticides in the fat of mutton birds of New Zealand

   • Jack C. Dacre

   OriginalPaper Pages: 517 - 522

7. Uptake of a PCB (Aroclor 1254) from soil by carrots under field conditions

   • Yutaka Iwata
   • Francis A. Gunther
   • William E. Westlake

   OriginalPaper Pages: 523 - 528

8. Feeding studies with randox in the dairy cow

   • L. E. St. John Jr.
   • D. J. Lisk

   OriginalPaper Pages: 529 - 531

9. Guthion half-life in aqueous solutions and on glass surfaces

   • Bruria Heuer
   • Bruno Yaron
   • Yehudith Birk

   OriginalPaper Pages: 532 - 537

10. Alteration of hepatic microsomal metabolism of male mice by certain anticholinesterase insecticides

    • J. T. Stevens
    • F. E. Greene

    OriginalPaper Pages: 538 - 544

11. Study on subacute toxicity of carbon n-hexane-acetone extract recovered from drinking water

    • Shoji Maruoka
    • Toshisaburo Nishio
    • Senzo Kawai

    OriginalPaper Pages: 545 - 550

12. ²⁰³Hg tracer studies on mercury uptake from soil by Wheat and Barley

    • C. C. Lee

    OriginalPaper Pages: 551 - 553

13. Effect of diethylstilbestrol on feedlot associated bacteria

    • D. W. Thayer
    • D. W. Unfred
    • R. K. Ando

    OriginalPaper Pages: 554 - 562

14. Short-term fate of dietary dieldrin in the digestive tract of Juvenile Lake Trout (Salvelinus namaycush)

    • Donald J. Stewart
    • Roy A. Stein

    OriginalPaper Pages: 563 - 566

15. Residues of pentachloronitrobenzene and related compounds in greenhouse soils

    • R. H. de Vos
    • M. C. ten Noever de Brauw
    • P. D. A. Olthof

    OriginalPaper Pages: 567 - 571

16. ATPase activity in tissues of the map turtle,Graptemys geographica followingin vitro treatment with Aldrin and Dieldrin

    • Marion R. Wells
    • James B. Phillips
    • George G. Murphy

    OriginalPaper Pages: 572 - 576

17. Epoxidation of Aldrin to Dieldrin by Lobsters

    • Gary P. Carlson

    OriginalPaper Pages: 577 - 582