1. Quotients of k-semigroups

   • J. Lawson
   • B. Madison

   Research Articles Pages: 1 - 18

2. Monoids of dedekind type

   • V. L. Mannepalli
   • M. Satyanarayana

   OriginalPaper Pages: 19 - 27

3. Subdirectly irreducible H-semigroups

   • W. H. Carlisle

   OriginalPaper Pages: 28 - 35

4. Injectives in equational classes of idempotent semigroups

   • J. A. Gerhard

   OriginalPaper Pages: 36 - 53

5. Semilattice structures on trees

   • Kenneth E. Oberhoff

   OriginalPaper Pages: 54 - 73

6. A theorem on free envelopes

   • Chester C. John Jr.

   Research Announcements Pages: 74 - 75

7. The generalized translational hull of a semigroup

   • John K. Luedeman

   OriginalPaper Pages: 76 - 83

8. Retractions and S-endomorphisms

   • C. S. Johnson Jr.
   • F. R. McMorris

   Short Notes Pages: 84 - 87

9. Book review

   • A. H. Clifford

   BookReview Pages: 88 - 94

10. On the existence of special homogeneous monoids

    • J. Adámek
    • V. Koubek
    • J. Reiterman

    Research Articles Pages: 95 - 101

11. Existence of nontrivial stochastic monoids

    • H. -J. Hoehnke

    OriginalPaper Pages: 102 - 108

12. Congruence-free inverse semigroups

    • P. G. Trotter

    OriginalPaper Pages: 109 - 116

13. Topological semivector spaces: Convexity and fixed point theory

    • Prem Prakash
    • Murat R. Sertel

    OriginalPaper Pages: 117 - 138

14. On orderability of some classes of groupoids

    • E. Ja. Gabovič

    OriginalPaper Pages: 139 - 154

15. Note on {O_α}-bands of groupoids

    • Kiyoshi Takizawa

    OriginalPaper Pages: 155 - 158

16. Injectives in certain classes of semigroups

    • Boris M. Schein

    OriginalPaper Pages: 159 - 171

17. Semilattices of bisimple orthodox semigroups

    • D. R. LaTorre

    Research Announcements Pages: 172 - 178

18. Problems 44 and 39 on compact semilattices

    • A. Y. W. Lau

    OriginalPaper Pages: 179 - 180

19. Viewing results on ✓-indecomposable semigroups as solutions to mathematical puzzles

    • Mohan S. Putcha

    Short Notes Pages: 181 - 183

20. Book review

    • R. McFadden

    BookReview Pages: 184 - 188

21. On the elementary theory of free inverse semigroups

    • Ju. M. Važenin

    Research Articles Pages: 189 - 195

22. Maximal submonoids of the semigroup of binary relations

    • K. A. Zareckii

    OriginalPaper Pages: 196 - 208

23. Inner automorphisme of the translational hull

    • Mario Petrich

    OriginalPaper Pages: 209 - 215

24. Ideal extensions of irreductive semigroups

    • L. M. Gluskin
    • B. M. Schein

    OriginalPaper Pages: 216 - 240

25. Compatible extensinos and subdirectly ireducible semigroups

    • David E. Zitarelli

    OriginalPaper Pages: 241 - 252

26. The semigroup of hall relations

    • Kim Ki-Hang Butler

    OriginalPaper Pages: 253 - 260

27. Fastideale von halbgruppen

    • H. Jürgensen

    OriginalPaper Pages: 261 - 270

28. A subdirectly irreducible band accepting a = a

    • Charles F. Fennemore

    Short Notes Pages: 271 - 274

29. Weakly uniform monothetic semigroups

    • L. B. Šneperman

    OriginalPaper Pages: 275 - 277

30. A note on left cancellative semigroups without idempotents

    • Gong-hwai Chen

    OriginalPaper Pages: 278 - 282

31. Completely simple congruences on Croisot-Teissier semigroups

    • Bruce W. Mielke

    Research Articles Pages: 283 - 293

32. Prüfer and dedekind monoids

    • M. P. Dorofeeva
    • V. L. Mannepalli
    • M. Satyanarayana

    OriginalPaper Pages: 294 - 309

33. Corollaries of the A-H-V formula

    • P. E. Conner

    OriginalPaper Pages: 310 - 317

34. Semigroups with bisimple and simple ω-subsemigroups

    • Janet E. Ault

    OriginalPaper Pages: 318 - 333

35. Quelques Constructions Et Algorithmes Relatifs Aux Sous-Monoïdes D'un Monoïde Libre

    • J. C. Spehner

    OriginalPaper Pages: 334 - 353

36. Structure of regular semigroups, I fundamental regular semigroups

    • K. S. S. Nambooripad

    Research Announcements Pages: 354 - 363

37. Structure of regular semigroups II the general case

    • K. S. S. Nambooripad

    OriginalPaper Pages: 364 - 371

38. On the construction of bisimple orthodox semigroups

    • D. R. LaTorre

    Short Notes Pages: 372 - 374