1. An extreme value model for expressing grain size and bed thickness as functions of the spatial variation of grain frequency

   • W. E. Bardsley

   OriginalPaper Pages: 643 - 655

2. A statistical approach to modeling transport of pollutants in ground water

   • Benjamin Ross
   • Charles M. Koplik

   OriginalPaper Pages: 657 - 672

3. Equations of motion for post-mortem sinking of cephalopod shells

   • John A. Chamberlain Jr.
   • J. Scott Weaver

   OriginalPaper Pages: 673 - 689

4. Estimation accuracy in relation to control spacing in sampling of ore deposits: Graphic solutions

   • T. R. P. Singh

   OriginalPaper Pages: 691 - 697

5. Third William Christian Krumbein Medallist: Frederik Pieter Agterberg

   • E. H. Timothy Whitten

   Association Announcements Pages: 699 - 700