1. Subgroups of free idempotent generated regular semigroups

   • K. S. S. Nambooripad
   • F. Pastijn

   Research Article Pages: 1 - 7

2. A class of rectangular bands of inverse semigroups

   • A. de Bodt
   • F. Pastijn

   Research Article Pages: 9 - 11

3. A generalization of the bicyclic semigroup

   • Celia L. Adair

   Research Article Pages: 13 - 25

4. Strict radicals of monoids

   • L. M⇘rki
   • R. Mlitz
   • R. Strecker

   Research Article Pages: 27 - 66

5. Varieties generated by semigroups of order four

   • Charles C. Edmunds

   Research Article Pages: 67 - 81

6. Varietal free products of bands

   • Philip Olin

   Research Article Pages: 83 - 87

7. Augmentations and wreath products of monoids

   • Gerard Lallement

   Short Note Pages: 89 - 90

8. Clousre operators on languages and binary relations

   • Jack Anderson

   Short Note Pages: 91 - 92

9. On completely regular semigroups

   • O. Steinfeld

   Short Note Pages: 93 - 94

10. Epimorphisms and semilattices of semigroups

    • J. Winston Crawley

    Research Article Pages: 95 - 112

11. Complete co-atomic lattices with enough primes

    • Elliott Evans

    Research Article Pages: 113 - 126

12. Semigroups with each element disjunctive

    • H. Jürgensen
    • G. Thierrin

    Research Article Pages: 127 - 141

13. The universal group of homogeneous quotients

    • Kevin E. Osondu

    Research Article Pages: 143 - 152

14. Joint continuity of affine semigroup actions

    • Dietrich Helmer

    Research Article Pages: 153 - 165

15. Une représentation fidèle des groupes d'un monoïde de relations binaires sur un ensemble fini

    • Evelyne Le Rest
    • Michel Le Rest

    Research Article Pages: 167 - 172

16. Sur le calcul du monoïde syntaxique d'un sous monoïde finiment engendré

    • Evelyne Le Rest
    • Michel Le Rest

    Research Article Pages: 173 - 185

17. Cancellative subsemigroups of archimedean semigroups

    • Mohan S. Putcha

    Research Article Pages: 187 - 193

18. Complementation and inner automorphism for regular semi groups

    • M. Loganathan

    Research Article Pages: 195 - 204

19. Biordered sets and complemented modular lattices

    • Francis Pastijn

    Research Article Pages: 205 - 220

20. Sums equal to products in βN

    • Neil Hindman

    Research Article Pages: 221 - 255

21. A probabilistic approach to representation formulae for semigroups of operators with rates of convergence

    • P. L. Butzer
    • L. Hahn

    Research Article Pages: 257 - 272

22. Idempotent boolean matrices

    • R. Chaudhuri
    • A. Mukherjea

    Research Article Pages: 273 - 282

23. On injective and flat commutative regular semigroups

    • Tom Head
    • James A. Anderson

    Short Note Pages: 283 - 284

24. Fundamental order relations on inverse semigroups and on their generalizations

    • Simon M. Goberstein

    Survey Article Pages: 285 - 328

25. On the orders of the subsemigroups of the symmetrical semigroup ℑ_n

    • K. Todorov

    Research Article Pages: 329 - 335

26. On semigroups with minimal or maximal condition on left congruences

    • I. B. Kozhukhov

    Research Article Pages: 337 - 350

27. The growth functions of finitely generated semigroups

    • V. I. Trofimov

    Research Article Pages: 351 - 360

28. Unifying congruences on S(I)

    • K. D. Magill Jr.
    • P. R. Misra
    • U. B. Tewari

    Research Article Pages: 361 - 371

29. Describing uniform bands in terms of uniform semilattices

    • Janet E. Mills

    Research Article Pages: 373 - 381

30. On semitopological comopactifications of non-abelian groups

    • Wolfgang Ruppert

    Research Announcement Pages: 383 - 389