1. Development of stochastic partial differential equations for subsurface hydrology

   • J. H. Cushman

   Reviews Pages: 241 - 262

2. Micro-scale modelling in the study of plume evolution in heterogeneous media

   • E. O. Frind
   • E. A. Sudicky
   • S. L. Schellenberg

   Originals Pages: 263 - 279

3. Announcements

   Announcement Pages: 280 - 280

4. Semigroup solutions to stochastic unsteady groundwater flow subject to random parameters

   • S. E. Serrano
   • T. E. Unny

   Originals Pages: 281 - 296

5. On a general class of stochastic partial differential equations

   • A. Bensoussan

   Originals Pages: 297 - 302

6. Rainfall-runoff forecasting methods, old and new

   • M. Karlsson
   • S. Yakowitz

   Originals Pages: 303 - 318