1. Editorial

   • Diethard Tautz

   EditorialNotes Pages: 321 - 321

2. Hilde Mangold (1898–1924) and Spemann's organizer: achievement and tragedy

   • Peter E. Fässler
   • Klaus Sander

   Essay Pages: 323 - 332

3. Isolation and characterization of Urbain, a 20-hydroxyecdysone-inducible gene expressed during morphogenesis of Bombyx mori wing imaginal discs

   • Marie Thérèse Besson
   • Pascal Chareyre
   • Georges Bosquet

   Original Article Pages: 333 - 343

4. Development of leg chordotonal sensory organs in normal and heat shocked embryos of the cricket Teleogryllus commodus (Walker)

   • M. Klose

   Original Article Pages: 344 - 355

5. Terminal filament cell organization in the larval ovary of Drosophila melanogaster: ultrastructural observations and pattern of divisions

   • Isabelle Sahut-Barnola
   • Bernard Dastugue
   • Jean-Louis Couderc

   Original Article Pages: 356 - 363

6. Axis formation in half blastoderms of the chick: Stage at separation and the relative positions of fused halves influence axis development

   • O. Khaner

   Original Article Pages: 364 - 370

7. Spatio-temporal expression of pamlin during early embryogenesis in sea urchin and importance of N-linked glycosylation for the glycoprotein function

   • H. Katow
   • S. Komazaki

   Original Article Pages: 371 - 381

8. Analysis of mesenchymal influence on the pepsinogen gene expression in the epithelium of chicken embryonic digestive tract

   • K. Urase
   • K. Fukuda
   • S. Yasugi

   Original Article Pages: 382 - 390

9. Establishment of self-sterility of eggs in the ovary of the solitary ascidian, Halocynthia roretzi

   • M. Fuke
   • T. Numakunai

   Original Article Pages: 391 - 400

10. Spatial and temporal coincidence of induction processes and gap-junctional communication in Patella vulgata (Mollusca, Gastropoda)

    • P. Damen
    • W. J. A. G. Dictus

    Original Article Pages: 401 - 409

11. Differentiation of the body wall musculature in Macrostomum hystricinum marinum and Hoploplana inquilina (Plathelminthes), as models for muscle development in lower Spiralia

    • D. Reiter
    • P. Ladurner
    • B. Boyer

    Original Article Pages: 410 - 423

12. Segmentation in the crustacean Artemia: engrailed staining studied with an antibody raised against the Artemia protein

    • M. Manzanares
    • T. A. Williams
    • R. Garesse

    Original Article Pages: 424 - 431

13. Embryonic expression of the engrailed homologue of Rhynchosciara americana

    • C. E. Vanario-Alonso
    • R. Sutton
    • E. Abdelhay

    Original Article Pages: 432 - 436

14. Development of isolated sheep inner cell masses/embryonic discs in vitro

    • J. Karasiewicz
    • E. Szablisty
    • M. Reed

    Original Article Pages: 437 - 442

15. Lens formation from cornea implanted into amputated hindlimbs of Xenopus laevis larvae requires innervation or proliferating cell populations in the stump

    • S. M. Cannata
    • S. Bernardini
    • S. Filoni

    Original Article Pages: 443 - 449

16. Stage, tissue, and cell specific distribution of alternative Ultrabithorax mRNAs and protein isoforms in the Drosophila embryo

    • A. J. López
    • R. D. Artero
    • M. Pérez-Alonso

    Original Article Pages: 450 - 459

17. Isolation of carp cDNA clones, representing developmentally-regulated genes, using a subtractive-hybridization strategy

    • C. J. M. Stevens
    • G. te Kronnie
    • H. W. J. Stroband

    Original Article Pages: 460 - 467

18. The function of type IV collagen during Drosophila embryogenesis

    • C. Borchiellini
    • J. Coulon
    • Y. Le Parco

    Original Article Pages: 468 - 475

19. Error correction during guidance of pioneer axons in the leg of the cockroach embryo

    • I. Rajan
    • J. L. Denburg

    Original Article Pages: 476 - 485

20. Muscle regeneration in the holothurian Stichopus japonicus

    • I. Y. Dolmatov
    • M. G. Eliseikina
    • A. A. Bulgakov

    Original Article Pages: 486 - 493

21. Embryonic gut differentiation in nematodes: endocytosis of macromolecules and its experimental inhibition

    • O. Bossinger
    • O. Wiegner
    • E. Schierenberg

    Short Communication Pages: 494 - 497

22. Acknowledgement to referees

    Legacy Pages: 499 - 499