1. A note on conullFK spaces and variation matrices

   • John J. Sember

   OriginalPaper Pages: 1 - 6

2. Note on Dembowski's groups of collineations

   • Ralph Hugh Francis Denniston

   BriefCommunication Pages: 7 - 9

3. Sur les μ-demi-anneaux

   • A. Almeida Costa

   OriginalPaper Pages: 10 - 14

4. Über das Spektrum positiver Operatoren

   • Heinrich P. Lotz

   OriginalPaper Pages: 15 - 32

5. Über einen Satz von F. Niiro und I. Sawashima

   • Heinrich P. Lotz
   • Heilmut H. Schaefer

   OriginalPaper Pages: 33 - 36

6. Collineation groups in Hjelmslev-Moufang planes

   • Ferdinand D. Veldkamp

   OriginalPaper Pages: 37 - 52

7. Some applications of subnormality in groups in the study of group algebras

   • David Alexander Ross Wallace

   OriginalPaper Pages: 53 - 62

8. Section semicomplemented lattices

   • Melvin F. Janowitz

   OriginalPaper Pages: 63 - 76