1. Transport of arsenic in grassland microcosms and field plots

   • Danny R. Jackson
   • Maxine Levin

   OriginalPaper Pages: 3 - 12

2. Effects of arsenic on nutrient dynamics of grassland microcosms and field plots

   • Danny R. Jackson
   • Beverly S. Ausmus
   • Maxine Levin

   OriginalPaper Pages: 13 - 21

3. A new method for sodium sulfide removal from an aqueous solution and application to industrial wastewater and sludge

   • Yasuo Ueno
   • Alan Williams
   • F. E. Murray

   OriginalPaper Pages: 23 - 42

4. Phytoplankton community of an acidified, heavy metal—Contaminated lake near Sudbury, Ontario: 1973–1977

   • N. D. Yan

   OriginalPaper Pages: 43 - 55

5. Factors influencing pH in lake water

   • Cyrill Brosset

   OriginalPaper Pages: 57 - 61

6. The atmospheric contribution of phosphorus to an aquatic system

   • Ronald F. Sober
   • Marcia H. Bates

   OriginalPaper Pages: 63 - 69

7. Organochlorine pesticides in gamebirds of Eastern Tennessee

   • R. Dean Blevins

   OriginalPaper Pages: 71 - 75

8. Heavy metals in bulk precipitation and transplantedHypogymnia physodes andDicranoweisia cirrata in the vicinity of a Danish steelworks

   • K. Pilegaard

   OriginalPaper Pages: 77 - 91

9. A comparison of fluorescein dye and antibiotic-resistantEscherichia coli as indicators of pollution in groundwater

   • T. M. Rare
   • C. Hagedorn
   • E. L. McCoy

   OriginalPaper Pages: 93 - 103

10. BOD and COD studies of synthetic and semisynthetic cutting fluids

    • M. C. Adams
    • J. E. Gannon
    • E. O. Bennett

    OriginalPaper Pages: 105 - 113

11. Air pollution: A different view

    • Hugh W. Ellsaesser

    OriginalPaper Pages: 115 - 127

12. Book reviews

    • Luis Diaz
    • T. Viraraghavan

    BookReview Pages: 129 - 134

13. Announcements

    Announcement Pages: 135 - 135