A comparative ultrastructural and physiological study on melanophores of wild-type and periodic albino mutants of Xenopus laevis R. SeldenrijkK. G. H. HuijsmanF. C. G. van de Veerdonk OriginalPaper Pages: 1 - 9
Physiological and cytochemical studies on activator calcium in contraction by smooth muscle of a sea cucumber, Isostichopus badionotus Suechika Suzuki OriginalPaper Pages: 11 - 24
Paddle cilia (discocilia) in chemosensitive structures of the gastropod mollusk Pleurobranchaea californica Eugene M. MateraW. J. Davis OriginalPaper Pages: 25 - 40
Synthesis and migration of proteins and glycoproteins in juxtaglomerular cells of sodium-deficient rats Yvon DésormeauxMarie BallakJacques Genest OriginalPaper Pages: 53 - 67
Regeneration of splenic tissue after autologous subcutaneous implantation: Development of non-lymphoid cells in the white pulp of the rat spleen Christine D. DijkstraH. L. Langevoort OriginalPaper Pages: 69 - 79
Morphology and immunocytochemistry of the turtle pituitary gland with special reference to the pars tuberalis Anita K. PearsonPaul Licht OriginalPaper Pages: 81 - 100
Morphogenesis of the renal juxtaglomerular apparatus and peripolar cells in the sheep G. M. MitchellB. F. StratfordG. B. Ryan OriginalPaper Pages: 101 - 111
Endocytosis in absorptive cells of cultured human small-intestinal tissue: Effect of cytochalasin B and D J. BlokB. A. A. SchevenW. Th. Daems OriginalPaper Pages: 113 - 126
Aspects of the structure and development of monotreme spermatozoa and their relevance to the evolution of mammalian sperm morphology F. N. CarrickR. L. Hughes OriginalPaper Pages: 127 - 141
Fine structure of seminiferous tubules from prenatally irradiated rats Isabel AbreuJ. F. David-Ferreira OriginalPaper Pages: 143 - 152
Fine structure and cytochemistry of peroxisomes (microbodies) in Leptomonas samueli Thais Souto-PadrónWanderley de Souza OriginalPaper Pages: 153 - 158
Yolk-platelet crystals in three ancient bony fishes: Polypterus bichir (polypteri), Amia calva L., and Lepisosteus osseus (L.) (Holostei) Rainer H. LangeZygmunt GrodzińskiWincenty Kilarski OriginalPaper Pages: 159 - 165
Pigment biogenesis in freshwater shrimp ventral nerve chord chromatophores John C. McNamaraAntonio Sesso OriginalPaper Pages: 167 - 175
Pinealocytes contacting the cerebrospinal fluid of the suprapineal recess in the Mongolian gerbil (Meriones unguiculatus) Maria Hewing OriginalPaper Pages: 177 - 185
Formation of membrane-bounded secretory granules in the midgut epithelium of a termite, Cubitermes severus, and a possible intercellular route of discharge D. E. BignellH. OskarssonJ. M. Anderson OriginalPaper Pages: 187 - 200
Effects of high concentrations of secretagogues on the morphology and secretory activity of the pancreas: A role for microfilaments Daniel B. BurnhamJohn A. Williams OriginalPaper Pages: 201 - 212
Ultrastructural evidence of gonadotrophin release from castration cells following injection of LHRH in the rat Masataka Shiino OriginalPaper Pages: 213 - 222
Contacts between endocrine and exocrine cells in the pancreas Moïse Bendayan Short Communication Pages: 227 - 230