1. Differentiation and degeneration of crayfish photoreceptors in darkness

   • Joan L. M. Roach
   • C. A. G. Wiersma

   OriginalPaper Pages: 137 - 144

2. Fractographic study on the growth and multiplication of the gastric gland of the hamster

   • Takanori Hattori
   • Setsuya Fujita

   OriginalPaper Pages: 145 - 149

3. Taste bud types in fishes

   • Klaus Reutter
   • Winrich Breipohl
   • Gerhard J. Bijvank

   OriginalPaper Pages: 151 - 165

4. Catalase-like crystals in parathyroid gland cells of Rana temporaria L.

   • Rainer H. Lange
   • A. R. Soames
   • Raymond Coleman

   OriginalPaper Pages: 167 - 173

5. Electron microscopical observations on Kölliker's and Hatschek's pit and on the wheel organ in the head region of Amphioxus (Branchiostoma lanceolatum)

   • Loan T. Tjoa
   • Ulrich Welsch

   OriginalPaper Pages: 175 - 187

6. Connections between adjacent retinula cell columns in the eye of Ephestia kuehniella Zeller (Lepidoptera, Pyralididae)

   • Frederick Jay Gottlieb

   OriginalPaper Pages: 189 - 193

7. Effects of ACTH on organelle interrelationships in the corpus luteum of the pregnant deermouse

   • Thomas F. Ogle

   OriginalPaper Pages: 195 - 209

8. Luteinizing hormone —Releasing hormone (LH-RH) pathway of the rat hypothalamus revealed by the unlabeled antibody peroxidase-antiperoxidase method

   • J. C. King
   • J. A. Parsons
   • T. H. Williams

   OriginalPaper Pages: 211 - 217

9. Regional differences in the distribution of golgi cells in the cerebellar cortex of man and some other mammals

   • W. Lange

   OriginalPaper Pages: 219 - 226

10. The distribution of synapses along the spinal cord of an amphibian embryo: An electron microscope study of junction development

    • Brian P. Hayes
    • Alan Roberts

    OriginalPaper Pages: 227 - 244

11. Elastic fibres in the notochord of Rana rugosa tadpoles

    • Taisuke Nakao

    OriginalPaper Pages: 245 - 251

12. The ultrastructural localization of fibrinogen at the erythrocyte surface and in the capillary endothelium

    • F. J. Stone
    • H. A. Coren
    • D. Frisch

    OriginalPaper Pages: 253 - 260

13. Adhesion plaques associated with the production of a daughter cell in Euglypha (Testacea; Potozoa)

    • R. H. Hedley
    • C. G. Ogden

    OriginalPaper Pages: 261 - 268

14. Granular “endocrine” cells in avian respiratory epithelia

    • C. Walsh
    • J. McLelland

    OriginalPaper Pages: 269 - 276