1. Editorial

   EditorialNotes Pages: 1 - 1

2. Forthcoming papers

   Announcement Pages: 2 - 2

3. Announcements

   Announcement Pages: 3 - 4

4. cAMP concentration, morphological differentiation and citric acid production in Aspergillus niger

   • Z. S. Al Obaidi
   • D. R. Berry

   OriginalPaper Pages: 5 - 10

5. Microcalorimetric evaluation of the efficacy of the alkaline treatment on the fermentation of straw

   • Françoise Plasse
   • Marie-Laure Fardeau
   • Jean-Pierre Belaich

   OriginalPaper Pages: 11 - 16

6. Dry-column chromatographic purification of aflatoxin precursors

   • J. J. Dunn
   • L. S. Lee
   • J. W. Bennett

   OriginalPaper Pages: 17 - 22

7. Sulphite oxidation in the disc fermenter

   • G. Artavanis
   • J. R. Todd

   OriginalPaper Pages: 23 - 28

8. Immobilized bacterial cells containing a thermostable β-galactosidase

   • M. De Rosa
   • A. Gambacorta
   • E. Poerio

   OriginalPaper Pages: 29 - 34

9. Growth of Candida utilis on enzymatically hydrolysed cassava

   • H. M. Musenge
   • J. G. Anderson
   • R. S. Holdom

   OriginalPaper Pages: 35 - 40