1. Joseph Meyrath

   Announcement Pages: 515 - 515

2. Meetings calendar

   Events Pages: 517 - 518

3. A novel approach to cell immobilization with filamentous Escherichia coli

   • W. -W. Tso

   OriginalPaper Pages: 519 - 524

4. Enhancement of tryptophan production by Escherichia coli as an application of genetic engineering

   • Shuichi Aiba
   • Tadayuki Imanaka
   • Hiroshi Tsunekawa

   OriginalPaper Pages: 525 - 530

5. Experience with the computer control of yeast growth

   • I. Nelligan
   • C. T. Calam

   OriginalPaper Pages: 531 - 536

6. Separation of polymer from activated sludge

   • D. A. J. Wase
   • V. Balasundaram

   OriginalPaper Pages: 537 - 540

7. Immobilization of yeast cells on various supports for ethanol production

   • M. Moo-Young
   • J. Lamptey
   • C. W. Robinson

   OriginalPaper Pages: 541 - 548

8. Effect of temperature on sucrose to ethanol conversion by Zymomonas mobilis strains

   • E. Lyness
   • H. W. Doelle

   OriginalPaper Pages: 549 - 554