1. A short ordered commutative domain whose quotient field is not short

   • Krzysztof Ciesielski

   OriginalPaper Pages: 1 - 6

2. An alternative construction of Conway's ordered field No

   • Philip Ehrlich

   OriginalPaper Pages: 7 - 16

3. Undecidability of relatively free Hilbert algebras

   • Paweł M. Idziak

   OriginalPaper Pages: 17 - 26

4. Some very weak identities

   • Walter Taylor

   OriginalPaper Pages: 27 - 35

5. Every idempotent plain algebra generates a minimal variety

   • Ágnes Szendrei

   OriginalPaper Pages: 36 - 39

6. A problem concerning the lattice varietal product

   • Tom Harrison

   OriginalPaper Pages: 40 - 84

7. Representation of varieties in combinatory algebras

   • Erwin Engeler

   OriginalPaper Pages: 85 - 95

8. On taking subalgebras of relativized relation algebras

   • H. Andréka

   OriginalPaper Pages: 96 - 100

9. On the structure and representation of clones

   • Arturo A. L. Sangalii

   OriginalPaper Pages: 101 - 106

10. Embedding arbitrary algebras in groups

    • George M. Bergman

    OriginalPaper Pages: 107 - 120

11. On the lattice of weak congruence relations

    • Gradimir Vojvodić
    • Branimir Šešelja

    OriginalPaper Pages: 121 - 130

12. An abstract theory of invertible relations

    • Leslie Cohn
    • Stephen D. Comer

    OriginalPaper Pages: 131 - 146

13. Structures algébriquesn-aires généralisant les catégories

    • Vladimir V. Topentcharov

    OriginalPaper Pages: 147 - 173

14. Free products and the word problem

    • John Pedersen

    OriginalPaper Pages: 174 - 189

15. Extensions of invariant ideals

    • Piotr Zakrzewski

    OriginalPaper Pages: 190 - 195

16. Associated and weakly associated prime elements and primary decomposition in lattice modules

    • H. M. Nakkar
    • D. D. Anderson

    OriginalPaper Pages: 196 - 209

17. Finite fixed point algebras are subdiagonalisable

    • David Hobby

    OriginalPaper Pages: 210 - 222

18. Lee classes and sentences for pseudocomplemented semilattices

    • Jürg Schmid

    OriginalPaper Pages: 223 - 232

19. Errata

    Erratum Pages: 233 - 233

20. Idempotent medialn-groupoids defined on fields

    • Jung R. Cho

    OriginalPaper Pages: 235 - 246

21. Weak varieties of partial algebras

    • Grzegorz Jarzembski

    OriginalPaper Pages: 247 - 262

22. On finite bases for varieties and pseudovarieties

    • Robert Cacioppo

    OriginalPaper Pages: 263 - 280

23. Boolean factors of orthomodular lattices

    • J. Harding

    OriginalPaper Pages: 281 - 282

24. Remark on the altitude of Boolean algebras

    • Winfried Just

    OriginalPaper Pages: 283 - 289

25. Weak distributive laws and their role in lattices of congruences and equational theories

    • Marcel Erné

    OriginalPaper Pages: 290 - 321

26. On permutative semigroup algebras

    • Thomas E. Nordahl

    OriginalPaper Pages: 322 - 333

27. Finite algebras with Abelian properties

    • J. Shapiro

    OriginalPaper Pages: 334 - 364

28. Reduced sub-powers and the decision problem for finite algebras in arithmetical varieties

    • Pawel M. Idziak

    OriginalPaper Pages: 365 - 383

29. The prime ideal theorem and representation ofF-rings

    • B. Banaschewski

    OriginalPaper Pages: 384 - 387

30. A characterization of laterally commutative heaps

    • Vladimir Volenec

    OriginalPaper Pages: 388 - 390

31. A note on Jónsson's theorem

    • Johan Van Benthem

    OriginalPaper Pages: 391 - 393

32. On V. Fleischer's characterization of absolutely flat monoids

    • Sydney Bulman-Fleming
    • Kenneth McDowell

    OriginalPaper Pages: 394 - 399

33. A note on models of identities

    • Józef Dudek

    OriginalPaper Pages: 400 - 401