1. Unexpected properties of locally presentable categories

   • J. Rosický
   • V. Trnková
   • J. Adámek

   OriginalPaper Pages: 153 - 170

2. Intersections of finitely generated clones

   • Lucien Haddad

   OriginalPaper Pages: 171 - 179

3. Demi-pseudocomplemented lattices: principal congruences and subdirect irreducibility

   • Hanamantagouda P. Sankappanavar

   OriginalPaper Pages: 180 - 193

4. Homomorphisms of unary algebras with a given quotient

   • M. E. Adams
   • J. Sichler

   OriginalPaper Pages: 194 - 219

5. Modular subalgebra lattices

   • P. P. Pálfy

   OriginalPaper Pages: 220 - 229

6. Finding model-companions via the skeleton

   • Gerd Bürger

   OriginalPaper Pages: 230 - 242

7. On algebras with unique essentiallyn-ary operations

   • J. Gałuszka

   OriginalPaper Pages: 243 - 247

8. Principal congruences of double demi-p-lattices

   • Hanamantagouda P. Sankappanavar

   OriginalPaper Pages: 248 - 253

9. Lyndon's groupoid isnot inherently nonfinitely based

   • Tamás Bajusz
   • George McNulty
   • Ágnes Szendrei

   OriginalPaper Pages: 254 - 260

10. The unique minimal clone with three essentially binary operations

    • J. Dudek

    OriginalPaper Pages: 261 - 269

11. Projective geometries as cover-preserving sublattices

    • E. Fried
    • G. Grätzer
    • H. Lakser

    OriginalPaper Pages: 270 - 278

12. A relation algebra which is not a cylindric reduct

    • Roger D. Maddux

    OriginalPaper Pages: 279 - 288

13. Molecules of Post algebras

    • Fawzi M. Yaqub

    OriginalPaper Pages: 289 - 298

14. On interpretations of varieties with semilattice reduct

    • W. J. Blok

    OriginalPaper Pages: 299 - 303