1. Luteinizing hormone-releasing hormone (LHRH) neurons in the male and female rats at peripubertal period

   • Sumio Takahashi
   • Reiko Ono
   • Seiichiro Kawashima

   OriginalPaper Pages: 475 - 480

2. Cholinergic innervation of the main and the accessory olfactory bulbs of the rat as revealed by a monoclonal antibody against choline acetyltransferase

   • Hisayuki Ojima
   • Terukiyo Yamasaki
   • Akira Akashi

   OriginalPaper Pages: 481 - 488

3. Transient coappearance of glucagon and insulin in the progenitor cells of the rat pancreatic islets

   • Takayo Hashimoto
   • Hitoshi Kawano
   • Shigeaki Baba

   OriginalPaper Pages: 489 - 497

4. The structure and development of the collar enameloid in two teleost fishes, Halichoeres poecilopterus and Pagrus major

   • Ichiro Sasagawa
   • Mikio Ishiyama

   OriginalPaper Pages: 499 - 511

5. The Lamina cribrosa of Ornithorhynchus (Monotremata, Mammalia)

   • Ulrich Zeller

   OriginalPaper Pages: 513 - 519

6. Intersex mice composed of androgen insensitive Tfm and wild-type cells analysed by ³H dihydrotestosterone autoradiography

   • Gunter Schleicher
   • Walter E. Stumpf
   • Ulrich Drews

   OriginalPaper Pages: 521 - 528

7. An in vitro model of gonad differentiation in the chick embryo

   • Ulrich Drews
   • Cecilia Ebensperger
   • Ulrich Wolf

   OriginalPaper Pages: 529 - 536

8. The number of frog sciatic axons increases continually during body growth

   • A. Adam
   • R. L. Friede

   OriginalPaper Pages: 537 - 541

9. Spatial and temporal correlation between early nerve fiber growth and neuroepithelial cell death in the chick embryo retina

   • Miguel Angel Cuadros
   • Antonio Rios

   OriginalPaper Pages: 543 - 551

10. Study of the origin of connective tissue sheaths of peripheral nerves in the limb of avian embryos

    • Pavel Haninec

    OriginalPaper Pages: 553 - 557

11. Closure of the posterior neuropore in the vl mutant mouse

    • Doris B. Wilson
    • Darlene P. Wyatt

    OriginalPaper Pages: 559 - 563