1. Is ventral in insects dorsal in vertebrates?

   • K. Nübler-Jung
   • D. Arendt

   Centennial Essay Pages: 357 - 366

2. Fate-mapping in the procephalic region of the embryonic Drosopbila head

   • Urs Schmidt-Ott
   • Gerhard Martin Technau

   Original Articles Pages: 367 - 373

3. Dorso-ventral polarity of the zebrafish embryo is distinguishable prior to the onset of gastrulation

   • Beate Schmitz
   • José A. Campos-Ortega

   Original Articles Pages: 374 - 380

4. Expression of a putative precursor mRNA for sperm-activating peptide I in accessory cells of the ovary in the sea urchin Hemicentrotus pulcherrimus

   • Hiroaki Kinoh
   • Takeshi Shimizu
   • Norio Suzuki

   Original Articles Pages: 381 - 388

5. Mosaic formation by developmental loss of a chromosomal fragment in a “mottled striped” mosaic strain of the silkworm, Bombyx mori

   • Haruhiko Fujiwara
   • Masami Yanagawa
   • Hajime Ishikawa

   Original Articles Pages: 389 - 396

6. Involvement of a maternally transcribed lectin gene in the early development of Bombyx mori

   • Kazuhito Amanai
   • Yoshiaki Suzuki
   • Tetsuya Ohtaki

   Original Articles Pages: 397 - 401

7. Seasonal variations in the production of the egg-jelly macromolecule, a fucose sulphate glycoconjugate, by the accessory cells in the ovary of the sea urchin Hemicentrotus pulcherrimus

   • Hiroyuki Abe
   • Hiroaki Kinoh
   • Norio Suzuki

   Original Articles Pages: 402 - 410

8. Ultrabithorax protein expression in breakpoint mutants: localization of single, co-operative and redundant cis regulatory elements

   • F. Javier Camprodón
   • James E. Castelli-Gair

   Original Articles Pages: 411 - 421

9. Protein kinase C in hydrozoans: involvement in metamorphosis of Hydractinia and in pattern formation of Hydra

   • Thomas Schneider
   • Thomas Leitz

   Original Articles Pages: 422 - 428

10. Expression of the polyhomeotic locus in development of Drosophila melanogaster

    • Marco DeCamillis
    • Hugh Willet Brock

    Original Articles Pages: 429 - 438

11. 20-OH-Ecdysone-induced morphogenetic movements in a Chironomus cell line are accompanied by expression of an embryonic muscarinic system

    • Maria Lammerding-Köppel
    • Margarethe Spindler-Barth
    • Ulrich Drews

    Original Articles Pages: 439 - 444

12. Differential expression of RAR-ß and RXR-γ transcripts in cultured cranial neural crest cells

    • Annie Rowe
    • Sanjukta Sarkar
    • Peter Thorogood

    Short Communications Pages: 445 - 449

13. Production of haploid-haploid chimeras by sperm injection in the sawfly, Athalia rosae (Hymenoptera)

    • Masatsugu Hatakeyama
    • Masami Sawa
    • Kugao Oishi

    Short Communications Pages: 450 - 453

14. Acknowledgement to referees

    Legacy Pages: 454 - 454