1. A note of thanks to our referees

   • Robert S. De Santo

   Forum Pages: 473 - 473

2. Is “No-Threshold” a “Non-Concept”?

   • David J. Schaeffer

   Forum Pages: 475 - 481

3. Health and safety implications of alternative energy technologies. III. Fossil energy

   • P. J. Walsh
   • E. L. Etnier
   • A. P. Watson

   Profile Pages: 483 - 494

4. Ecological planning: A review

   • Frederick Steiner
   • Kenneth Brooks

   Profile Pages: 495 - 505

5. Enforcement of mitigation measures resulting from environmental impact assessment

   • Malcolm Hollick

   Profile Pages: 507 - 513

6. Threshold estimation from the linear dose-response model: Method and radiation data

   • David J. Schaeffer
   • Konanur G. Janardan
   • Harold W. Kerster

   Research Pages: 515 - 520

7. Brushland fire-management policies: A cross-impact simulation of southern California

   • Thomas M. Bonnicksen

   Research Pages: 521 - 529

8. Stream macroinvertebrate baseline surveys: A comparative analysis from the oil-shale regions of Colorado, USA

   • Don C. Erman

   Research Pages: 531 - 536

9. Wastewater effects on a waterhyacinth marsh and adjacent impoundment

   • Alberto Vega
   • Katherine Carter Ewel

   Research Pages: 537 - 541

10. Book reviews

    • Miguel A. Altieri
    • Michael Treshow
    • Christian G. Daughton

    Literature Pages: 543 - 547

11. Articles and papers

    Literature Pages: 548 - 556

12. Announcement

    Literature Pages: 556 - 556