1. Peptide-containing neurons intrinsic to the gut wall

   • G. Malmfors
   • S. Leander
   • F. Sundler

   OriginalPaper Pages: 225 - 238

2. The effect of polymyxin B and some mast-cell constituents on mucosal mast cells in the duodenum of the rat

   • Lennart Enerbäck
   • Gunbritt Löwhagen
   • Urban Wingren

   OriginalPaper Pages: 239 - 246

3. Localization by immunofluorescence of a gastrin-like substance in the brain of the rainbow trout, Salmo gairdneri

   • C. D. Notenboom
   • J. C. Garaud
   • M. Terlou

   OriginalPaper Pages: 247 - 255

4. A retinal projection to the lateral hypothalamus in the rat

   • Joseph N. Riley
   • John P. Card
   • Robert Y. Moore

   OriginalPaper Pages: 257 - 269

5. Development of blood-cerebrospinal fluid barrier to horseradish peroxidase in the avian choroidal epithelium

   • Susumu Wakai
   • Nobutaka Hirokawa

   OriginalPaper Pages: 271 - 278

6. Axoplasmic flow of tritiated proline in the corticospinal tract of the rat

   • H. Lee Vahlsing
   • Ronald B. Hirschl
   • Earl R. Feringa

   OriginalPaper Pages: 279 - 287

7. The effect of L-thyroxine on the metamorphosis of Ascidia malaca

   • E. Patricolo
   • G. Ortolani
   • A. Cascio

   OriginalPaper Pages: 289 - 301

8. The temporo-spatial course of degeneration after cutting cortico-cortical connections in adult rats

   • J. R. Wolff
   • S. Eins
   • L. Záborszky

   OriginalPaper Pages: 303 - 321

9. Ultrastructural organization of actin filaments in neurosecretory axons of the rat

   • G. Alonso
   • J. Gabrion
   • I. Assenmacher

   OriginalPaper Pages: 323 - 341

10. Evidence of membrane transformation during melanogenesis. Electron microscopic study on the retinal pigment epithelium of chick embryos

    • P. Stanka
    • P. Rathjen
    • B. Sahlmann

    OriginalPaper Pages: 343 - 353

11. Freeze-fracture and deep-etching studies on zymogen-granule membranes of the rat pancreas

    • Charles Cabana
    • Jean S. Hugon
    • François Lamy

    OriginalPaper Pages: 355 - 367

12. Quantitative analysis of muscle breakdown during starvation in the marine flatfish Pleuronectes platessa

    • Ian A. Johnston

    OriginalPaper Pages: 369 - 386

13. Hypothalamic lesions stimulating growth hormone cell activity in the goldfish

    • J. N. Fryer

    OriginalPaper Pages: 387 - 395

14. Microtubules and 10 nm-filaments in the retinal pigment epithelium during the diurnal light-dark-cycle

    • M. A. Klyne
    • M. A. Ali

    OriginalPaper Pages: 397 - 405

15. Ultrastructural localization of endogenous peroxidase in the lower respiratory tract of the guinea pig

    • T. G. Christensen
    • G. C. Blanchard
    • J. A. Hayes

    OriginalPaper Pages: 407 - 415

16. The origin of pituitary cysts in the rostral pars distalis of the nine-spined stickleback, Pungitius pungitius L.

    • Michael Benjamin

    OriginalPaper Pages: 417 - 430

17. Thymic microenvironment and cultures derived from mouse thymic explants

    • G. Goffinet
    • M. P. Houben-Defresne
    • J. Boniver

    OriginalPaper Pages: 431 - 441

18. A possible pathway of chitin synthesis as revealed by electron microscopy in Tetranychus urticae (Acari, Tetranychidae)

    • Ursula Mothes
    • K. A. Seitz

    OriginalPaper Pages: 443 - 448