1. Acetylcholinesterase activity of motor and sensory nerve fibers in the spinal nerve roots of the rat

   • William W. Schlaepfer

   OriginalPaper Pages: 441 - 456

2. The fine structure of the synaptic membrane adhesions on Octopus synaptosomes

   • D. G. Jones

   OriginalPaper Pages: 457 - 469

3. Ultrastructures des connexions entre cellules nerveuses, musculaires et glio-interstitielles chezGlossodoris

   • Ghislain Nicaise
   • Max Pavans de Ceccatty
   • Christine Baleydier

   OriginalPaper Pages: 470 - 486

4. Fluorescence studies on neural structures and endocrine cells in the pancreas of the cat

   • Peter G. Legg

   OriginalPaper Pages: 487 - 495

5. The ultrastructural changes in the neurohypophysis after destruction of the paraventricular nuclei in normal and castrated rats

   • David Zambrano
   • Eduardo de Robertis

   OriginalPaper Pages: 496 - 510

6. Histochemische, elektronenmikroskopische und quantitative Studien über den Glykogenvorrat der Plexus chorioidei vonRana temporaria L.

   • Eberhard Paul

   OriginalPaper Pages: 511 - 536

7. Modifications in the neurosecretory system of the fish,Misgurnus fossilis, induced by lasting inanition

   • Andrzej Jasiński

   OriginalPaper Pages: 537 - 548

8. Seasonal changes in endocrine organs of the male common frog,Rana temporaria

   • P. G. W. J. van Oordt
   • W. J. van Dongen
   • B. Lofts

   OriginalPaper Pages: 549 - 559

9. Der frostgeätzte Bakterienkern

   • Karl Gerhard Lickfeld

   OriginalPaper Pages: 560 - 564

10. Beobachtungen über die Feinstruktur der Haut und des äußeren Atrialepithels vonBranchiostoma lanceolatum Pall.

    • Ulrich Welsch

    OriginalPaper Pages: 565 - 575

11. Action de la prolactine chez l'anguille intacte III. Effet sur la Structure Histologique du Rein

    • Madeleine Olivereau
    • Anne -Marie Lemoine

    OriginalPaper Pages: 576 - 590