1. Photolysis of Heptachlor andcis-chlordane and toxicity of their photoisomers to animals

   • A. A. Podowski
   • B. C. Banerjee
   • M. A. Q. Khan

   OriginalPaper Pages: 509 - 518

2. Metabolism of¹⁴C-heptachlor in goldfish (Carassius auratus)

   • M. Feroz
   • M. A. Q. Khan

   OriginalPaper Pages: 519 - 531

3. Inhibition of spermatogenesis in rainbow trout during chronic cyanide poisoning

   • Sylvia M. Ruby
   • D. George Dixon
   • Gérard Leduc

   OriginalPaper Pages: 533 - 544

4. Chronic effect of copper on the bluntnose minnow,Pimephales notatus (Rafinesque)

   • W. B. Horning
   • T. W. Neiheisel

   OriginalPaper Pages: 545 - 552

5. Combined effects of salinity, temperature, and copper on embryos and early larvae of the American oyster,Crassostrea virginica

   • J. R. MacInnes
   • A. Calabrese

   OriginalPaper Pages: 553 - 562

6. Quantitation of sulfur-containing oil compounds and polychlorinated biphenyls (PCBs) in sediments from waters of the Osaka Port area

   • A. Nakamura
   • T. Kashimoto

   OriginalPaper Pages: 563 - 571

7. Excretion balance, metabolic fate, and tissue residues ofN-phenyl-N′-1,2,5-thiadiazol-3-ylurea (photothidiazuron) in rats

   • Terry L. Johnson
   • Charles O. Knowles

   OriginalPaper Pages: 573 - 587

8. Tri- and tetrachloroguaiacol: Results of a three and six-month feeding study in rats

   • I. Chu
   • D. C. Villeneuve
   • V. E. Valli

   OriginalPaper Pages: 589 - 597

9. Acute toxicity studies of surfactants toDaphnia magna andDaphnia pulex

   • Alan W. Maki
   • William E. Bishop

   OriginalPaper Pages: 599 - 612

10. Nutritional and toxicological studies with growing pigs fed aquatic plant rations

    • Tuan N. Yap
    • Wilson G. Pond
    • Donald J. Lisk

    OriginalPaper Pages: 613 - 619

11. A personal air sampler for pesticides

    • Robert H. Hill Jr.
    • James E. Arnold

    OriginalPaper Pages: 621 - 628

12. The effect of some pesticides on asymbiotic N₂-fixation in Egyptian soil

    • N. Hegazi
    • M. Monib
    • R. S. Farag

    OriginalPaper Pages: 629 - 635