1. Stone algebra extensions with bounded dense sets

   • M. Gehrke
   • C. Walker
   • E. Walker

   Pages: 1 - 23

2. Tyings in lattice-ordered permutation groups

   • R.N. Ball
   • S.H. McCleary

   Pages: 24 - 69

3. Decision problem for orthomodular lattices

   • M.A.E.H. Sherif

   Pages: 70 - 76

4. Regular coverings in complete modular lattices

   • W.H. Rowan

   Pages: 77 - 80

5. On the representation of lattices by subgroup lattices

   • V.B. Repnitskii

   Pages: 81 - 105

6. Free monadic Tarski algebras

   • L.F. Monteiro
   • M. Abad
   • J. Sewald

   Pages: 106 - 118

7. Congruences in partial abelian semigroups

   • S. Pulmannová

   Pages: 119 - 140

8. Complete congruence lattices of join-infinite distributive lattices

   • G. Grätzer
   • E.T. Schmidt

   Pages: 141 - 143

9. A note on polynomial automorphisms of finite lattices

   • H. Lakser

   Pages: 144 - 145