1. Intracellular localization of actin with fluorescently labelled heavy meromyosin

   • Joseph W. Sanger

   OriginalPaper Pages: 431 - 444

2. Ultrastructure of the grasshopper proximal femoral chordotonal organ

   • D. T. Moran
   • J. C. Rowley III
   • F. G. Varela

   OriginalPaper Pages: 445 - 457

3. Studies on the juxtaglomerular apparatus

   • H. -U. Boll
   • W. G. Forssmann
   • R. Taugner

   OriginalPaper Pages: 459 - 469

4. Fine structure of single fibres of human skeletal muscle

   • Romuald Wroblewski
   • Eva Jansson

   OriginalPaper Pages: 471 - 476

5. A comparison of aldehyde fuchsin and alcian blue staining of neurosecretory material in Oncopeltus fasciatus

   • D. C. Mahon
   • K. K. Nair

   OriginalPaper Pages: 477 - 484

6. Lymphoid cells in chicken intestinal epithelium

   • Peter Bjerregaard

   OriginalPaper Pages: 485 - 495

7. Trophic influences of sympathetic nerves and cyclic AMP on differentiation and proliferation of isolated smooth muscle cells in culture

   • Julie H. Chamley
   • Gordon R. Campbell

   OriginalPaper Pages: 497 - 510

8. Innervation of the anterior byssal retractor muscle in Mytilus edulis L.

   • Jacques Gilloteaux

   OriginalPaper Pages: 511 - 519

9. The retinal pigment epithelium and photoreceptor cells light-and electron microscopic studies on monkey eyes

   • Niels Bülow

   OriginalPaper Pages: 521 - 540

10. Endocytosis and multivesicular body formation in rabbit luteal cells during pseudopregnancy

    • J. Quatacker

    OriginalPaper Pages: 541 - 553

11. Electron microscopic observations on extraneuronal lipofuscin in the monkey brain

    • Ebtihag F. El-Ghazzawi
    • H. A. Malaty

    OriginalPaper Pages: 555 - 565

12. Announcement

    Announcement Pages: CO3 - CO3