1. A comparative ultrastructural and physiological study on melanophores of wild-type and periodic albino mutants of Xenopus laevis

   • R. Seldenrijk
   • K. G. H. Huijsman
   • F. C. G. van de Veerdonk

   OriginalPaper Pages: 1 - 9

2. Physiological and cytochemical studies on activator calcium in contraction by smooth muscle of a sea cucumber, Isostichopus badionotus

   • Suechika Suzuki

   OriginalPaper Pages: 11 - 24

3. Paddle cilia (discocilia) in chemosensitive structures of the gastropod mollusk Pleurobranchaea californica

   • Eugene M. Matera
   • W. J. Davis

   OriginalPaper Pages: 25 - 40

4. The interstitial cells in the colon of the rabbit

   • Terumasa Komuro

   OriginalPaper Pages: 41 - 51

5. Synthesis and migration of proteins and glycoproteins in juxtaglomerular cells of sodium-deficient rats

   • Yvon Désormeaux
   • Marie Ballak
   • Jacques Genest

   OriginalPaper Pages: 53 - 67

6. Regeneration of splenic tissue after autologous subcutaneous implantation: Development of non-lymphoid cells in the white pulp of the rat spleen

   • Christine D. Dijkstra
   • H. L. Langevoort

   OriginalPaper Pages: 69 - 79

7. Morphology and immunocytochemistry of the turtle pituitary gland with special reference to the pars tuberalis

   • Anita K. Pearson
   • Paul Licht

   OriginalPaper Pages: 81 - 100

8. Morphogenesis of the renal juxtaglomerular apparatus and peripolar cells in the sheep

   • G. M. Mitchell
   • B. F. Stratford
   • G. B. Ryan

   OriginalPaper Pages: 101 - 111

9. Endocytosis in absorptive cells of cultured human small-intestinal tissue: Effect of cytochalasin B and D

   • J. Blok
   • B. A. A. Scheven
   • W. Th. Daems

   OriginalPaper Pages: 113 - 126

10. Aspects of the structure and development of monotreme spermatozoa and their relevance to the evolution of mammalian sperm morphology

    • F. N. Carrick
    • R. L. Hughes

    OriginalPaper Pages: 127 - 141

11. Fine structure of seminiferous tubules from prenatally irradiated rats

    • Isabel Abreu
    • J. F. David-Ferreira

    OriginalPaper Pages: 143 - 152

12. Fine structure and cytochemistry of peroxisomes (microbodies) in Leptomonas samueli

    • Thais Souto-Padrón
    • Wanderley de Souza

    OriginalPaper Pages: 153 - 158

13. Yolk-platelet crystals in three ancient bony fishes: Polypterus bichir (polypteri), Amia calva L., and Lepisosteus osseus (L.) (Holostei)

    • Rainer H. Lange
    • Zygmunt Grodziński
    • Wincenty Kilarski

    OriginalPaper Pages: 159 - 165

14. Pigment biogenesis in freshwater shrimp ventral nerve chord chromatophores

    • John C. McNamara
    • Antonio Sesso

    OriginalPaper Pages: 167 - 175

15. Pinealocytes contacting the cerebrospinal fluid of the suprapineal recess in the Mongolian gerbil (Meriones unguiculatus)

    • Maria Hewing

    OriginalPaper Pages: 177 - 185

16. Formation of membrane-bounded secretory granules in the midgut epithelium of a termite, Cubitermes severus, and a possible intercellular route of discharge

    • D. E. Bignell
    • H. Oskarsson
    • J. M. Anderson

    OriginalPaper Pages: 187 - 200

17. Effects of high concentrations of secretagogues on the morphology and secretory activity of the pancreas: A role for microfilaments

    • Daniel B. Burnham
    • John A. Williams

    OriginalPaper Pages: 201 - 212

18. Ultrastructural evidence of gonadotrophin release from castration cells following injection of LHRH in the rat

    • Masataka Shiino

    OriginalPaper Pages: 213 - 222

19. Morphological studies on neuroglia

    • Y. Murabe
    • Y. Ibata
    • Y. Sano

    Short Communication Pages: 223 - 226

20. Contacts between endocrine and exocrine cells in the pancreas

    • Moïse Bendayan

    Short Communication Pages: 227 - 230