1. Morphological and ecological characteristics of Spirochaeta plicatilis

   • R. P. Blakemore
   • E. Canale-Parola

   OriginalPaper Pages: 273 - 289

2. Observations on the ultrastructure of flagellar scales in the genus Synura (chrysophyceae)

   • David J. Hibberd

   OriginalPaper Pages: 291 - 304

3. Comparative studies with two pseudomonads on the sequential degradation of aromatic substances metabolized via different pathways

   • Hans Reber

   OriginalPaper Pages: 305 - 315

4. Effect of pesticides on blue-green algae

   • P. K. Singh

   OriginalPaper Pages: 317 - 320

5. Algal photosynthesis at increased hydrostatic pressure and constant pO₂

   • D. H. Pope
   • L. R. Berger

   OriginalPaper Pages: 321 - 325

6. Oxidative phosphorylation in intact bacteria

   • E. G. van der Beek
   • A. H. Stouthamer

   OriginalPaper Pages: 327 - 339

7. Properties of rubredoxin and ferredoxin isolated from spirochetes

   • P. W. Johnson
   • E. Canale-Parola

   OriginalPaper Pages: 341 - 353

8. A method for isolating nuclei from Euglena gracilis

   • June R. Aprille
   • D. E. Buetow

   OriginalPaper Pages: 355 - 362