1. Ultrastructural localization of peroxidase activity in normal human bone marrow cells

   • G. Adolph Ackerman
   • Michael A. Clark

   OriginalPaper Pages: 463 - 475

2. Electron microscopic studies on the palpi of Cybister fimbriolatus fimbriolatus (Say)

   • Fumioki Yasuzumi
   • Sakimori Yamaguchi
   • Gerald H. Johnson

   OriginalPaper Pages: 476 - 484

3. On the structure of the pulmonate osphradium

   • P. R. Benjamin

   OriginalPaper Pages: 485 - 501

4. Keratin-like fibres in the hemichordate Rhabdopleura compacta

   • P. N. Dilly

   OriginalPaper Pages: 502 - 515

5. Ultrastructure of the developing chicken liver before hatching

   • Björn Sandström
   • Jan Westman

   OriginalPaper Pages: 516 - 525

6. Intranukleäre Einschlüsse in endokrinen Zellen des Kaninchenmagens

   • O. Müller
   • M. Ratzenhofer

   OriginalPaper Pages: 526 - 536

7. Monoaminhaltige Strukturen im Zentralnervensystem der Trichoptera (Insecta) Teil II

   • Nikolai Klemm

   OriginalPaper Pages: 537 - 558

8. Cultivation and growth of dissociated neurons from chick embryo cerebral cortex in the presence of different substrates

   • M. Sensenbrenner
   • J. Booher
   • P. Mandel

   OriginalPaper Pages: 559 - 569

9. On the stimulus conducting structures in insect olfactory receptors

   • Rudolf Alexander Steinbrecht
   • Barbara Müller

   OriginalPaper Pages: 570 - 575

10. Die Feinstruktur des Mittelauges und des ventralen Frontalorgans von Artemia salina L. (Crustacea: Anostraca)

    • Silke Rasmussen

    OriginalPaper Pages: 576 - 596