1. Immunohistochemical localization of polypeptide hormones in endocrine cells of the digestive tract of Branchiostoma lanceolatum

   • M. Reinecke

   OriginalPaper Pages: 445 - 456

2. Electron-microscopic studies on the relationship between the frequency of parathyroid storage granules and serum calcium levels in the rat

   • Takao Setoguti
   • Yasuhisa Inoue
   • Kyoko Kato

   OriginalPaper Pages: 457 - 467

3. Gap junctions of the muscles of the small and large intestine

   • Giorgio Gabella
   • David Blundell

   OriginalPaper Pages: 469 - 488

4. Hepatic ultrastructural specialization in Antarctic fishes

   • Joseph T. Eastman
   • Arthur L. DeVries

   OriginalPaper Pages: 489 - 496

5. Nucleated thrombocytoid cells

   • Hilde Janzarik

   OriginalPaper Pages: 497 - 510

6. Development of the bovine acrosome

   • Fred Sinowatz
   • Karl-Heinz Wrobel

   OriginalPaper Pages: 511 - 524

7. Radioautographic studies on the neurohypophysial projections of the supraoptic and paraventricular nuclei in the rat

   • G. Alonso
   • I. Assenmacher

   OriginalPaper Pages: 525 - 534

8. Vascular corrosion replicas of chemo-baroreceptors in fish: The carotid labyrinth in Ictaluridae and Clariidae

   • K. R. Olson
   • K. B. Flint
   • R. B. Budde Jr.

   OriginalPaper Pages: 535 - 541

9. Spontaneous neurite outgrowth and vasoactive intestinal peptide-Iike immunoreactivity of cultures of human paraganglioma cells from the glomus jugulare

   • Arthur S. Tischler
   • Arthur K. Lee
   • Hubert J. Wolfe

   OriginalPaper Pages: 543 - 555

10. Catecholamines and 5-hydroxytryptamine in photophores of Porichthys notatus

    • Michel Anctil
    • Simon Brunel
    • Laurent Descarries

    OriginalPaper Pages: 557 - 566

11. Nervous connections of the parietal eye in adult Lacerta s. sicula Rafinesque as demonstrated by anterograde and retrograde transport of horseradish peroxidase

    • H. -W. Korf
    • U. Wagner

    OriginalPaper Pages: 567 - 583

12. Cytology of the renal appendages of Nautilus (Cephalopoda, Tetrabranchiata)

    • R. Schipp
    • A. W. Martin

    OriginalPaper Pages: 585 - 596

13. Maintenance of regionally specific patterns of cell proliferation and differentiation in transplanted skin and oral mucosa

    • Ian C. Mackenzie
    • Murray W. Hill

    OriginalPaper Pages: 597 - 607

14. Autoradiographic localization of α-bungarotoxin-binding sites in the carotid body of the rat

    • I-li Chen
    • J. A. Mascorro
    • R. D. Yates

    OriginalPaper Pages: 609 - 618

15. Morphometric parameters of the midgut cells of Aedes aegypti L. (Insecta, Diptera) under various conditions

    • Hermann Hecker
    • Werner Rudin

    OriginalPaper Pages: 619 - 627

16. Luminal mucin in the large intestine of mice, rats and guinea pigs

    • T. Sakata
    • W. v. Engelhardt

    OriginalPaper Pages: 629 - 635

17. Ultrastructural study of the permeability of the guinea-pig placenta to horseradish peroxidase

    • C. P. Sibley
    • K. F. Bauman
    • J. A. Firth

    OriginalPaper Pages: 637 - 647

18. Ultrastructural study of the endothelial cells in teleost liver sinusoids under normal and experimental conditions

    • Sylvio Ferri
    • Antonio Sesso

    OriginalPaper Pages: 649 - 657

19. Scanning electron microscopic study of spermatozoa from gossypol-treated rats

    • Stephen A. Bozek
    • D. R. Jensen
    • J. N. Tone

    Short Communication Pages: 659 - 663