1. Obituary: Günter H. Wenzel

   • David Kelly

   Announcement Pages: 1 - 3

2. Automorphism groups of comparability and covering graphs

   • Gerhard Behrendt

   OriginalPaper Pages: 5 - 9

3. Alternating cycle-free matchings

   • Haiko Müller

   OriginalPaper Pages: 11 - 21

4. On computing the number of linear extensions of a tree

   • M. D. Atkinson

   OriginalPaper Pages: 23 - 25

5. Infinite joins that are finitely join-irreducible

   • George M. Bergman
   • Birge Zimmermann-Huisgen

   OriginalPaper Pages: 27 - 40

6. A partition relation for partially ordered sets

   • Marion Scheepers

   OriginalPaper Pages: 41 - 64

7. Independent sets and second category

   • Frederick Bagemihl

   OriginalPaper Pages: 65 - 66

8. Completions of orthomodular lattices

   • Günter Bruns
   • Richard Greechie
   • Michael Roddy

   OriginalPaper Pages: 67 - 76

9. On well-ordered mono-unary algebras

   • Jenó Szigeti

   OriginalPaper Pages: 77 - 81

10. Induced residuated maps

    • Robert C. Powers

    OriginalPaper Pages: 83 - 96

11. The order dimension of relatively free lattices

    • J. B. Nation
    • J. H. Schmerl

    OriginalPaper Pages: 97 - 99

12. A note on the dimension of a poset

    • E. C. Milner
    • M. Pouzet

    OriginalPaper Pages: 101 - 102

13. Unsolved problems

    BriefCommunication Pages: 103 - 103

14. Corrigendum

    • M. E. Adams
    • Matthew Gould

    Erratum Pages: 105 - 105