1. The orchard problem

   • Stefan A. Burr
   • Branko Grünbaum
   • N. J. A. Sloane

   OriginalPaper Pages: 397 - 424

2. Transitive linear groups and linear groups which contain irreducible subgroups of prime order

   • Christoph Hering

   OriginalPaper Pages: 425 - 460

3. Subadditive affine-invariant transformations of convex bodies

   • Guy Valette

   OriginalPaper Pages: 461 - 465

4. Normal subgroups of collineation groups of finite translation planes

   • T. G. Ostrom

   OriginalPaper Pages: 467 - 483

5. Generalized metric geometries of arbitrary dimension

   • James T. Smith

   OriginalPaper Pages: 485 - 497

6. Baer involutions in semifield planes of even order

   • Michael J. Ganley

   OriginalPaper Pages: 499 - 508

7. Embedding of quasi-residual designs

   • N. M. Singhi
   • S. S. Shrikhande

   OriginalPaper Pages: 509 - 517