1. The variety generated by order algebras

   • R. Freese
   • J. Ježek
   • R. McKenzie

   Pages: 103 - 138

2. On the cofinalities of Boolean algebras and the ideal of null sets

   • Krzysztof Ciesielski
   • Janusz Pawlikowski

   Pages: 139 - 143

3. Definable principal subcongruences

   • Kirby A. Basker
   • Ju Wang

   Pages: 145 - 151

4. On equations in inverse semigroups

   • Bella V. Rozenblat

   Pages: 153 - 156

5. The ring of $ α $-quotients

   • Anthony W. Hager
   • Jorge Martinez

   Pages: 157 - 182

6. The lattice of strict completions of a finite poset

   • G. H. Bordalo
   • B. Monjardet

   Pages: 183 - 200

7. Subdirectly irreducible generalized sums of upper semilattice ordered systems of algebras

   • J. Płonka
   • Z. Szylicka

   Pages: 201 - 211

8. Correction to "Some properties of complete congruence lattices"

   • Roberto Giacobazzi
   • Francesco Ranzato

   Pages: 213 - 213