1. Actions of Boolean rings on sets

   • George M. Bergman

   OriginalPaper Pages: 153 - 187

2. Co-rectangular bands and cosheaves in categories of algebras

   • George M. Bergman

   OriginalPaper Pages: 188 - 213

3. Endomorphism monoids of algebras whose subalgebra lattices are chains

   • N. Sauer
   • M. G. Stone

   OriginalPaper Pages: 214 - 229

4. Continuous completions

   • Karel Hrbacek

   OriginalPaper Pages: 230 - 244

5. Hyperidentities for some varieties of commutative semigroups

   • Shelly L. Wismath

   OriginalPaper Pages: 245 - 273

6. One variable is not enough for defining relation algebras, but two are

   • H. Andréka

   OriginalPaper Pages: 274 - 279

7. Projectivep-algebras

   • Tibor Katrińák
   • Daniel Ševčovič

   OriginalPaper Pages: 280 - 300

8. A×A congruence coherent impliesA congruence regular

   • J. Duda

   OriginalPaper Pages: 301 - 302