1. Sulfur isotopes in sulfate in the inputs and outputs of a Canadian Shield watershed

   • R. H. Hesslein
   • M. J. Capel
   • D. E. Fox

   OriginalPaper Pages: 263 - 273

2. Changes in nutrient distribution in forests and soils of Walker Branch watershed, Tennessee, over an eleven-year period

   • Dale W. Johnson
   • Gray S. Henderson
   • Donald E. Todd

   OriginalPaper Pages: 275 - 293

3. Emission of hydrogen from deep and shallow freshwater environments

   • H. Schütz
   • R. Conrad
   • W. Seiler

   OriginalPaper Pages: 295 - 311

4. Light and electron microscopy of stained microaggregates: the role of organic matter and microbes in soil aggregation

   • H. Tiessen
   • J. W. B. Stewart

   OriginalPaper Pages: 312 - 322

5. Transport of phosphorus, nitrogen, and carbon by the Apure River, Venezuela

   • James F. Saunders III
   • William M. Lewis Jr.

   OriginalPaper Pages: 323 - 342