1. Yves Delage (1854–1920) and the ideology behind his research on fécondation

   • Jean-Louis Fischer

   Essay Pages: 219 - 222

2. Xenopus laevis tadpole limb regeneration in vivo and in vitro: thyroxine directly promotes blastemal cell proliferation and morphogenesis

   • G. La Mesa
   • S. Bernardini
   • S. Filoni

   Original Articles Pages: 223 - 228

3. Lectin binding sites during Drosophila embryogenesis

   • P. Callaerts
   • V. Vulsteke
   • W. Peumans

   Original Articles Pages: 229 - 243

4. The chicken retinoid-X-receptor-α (RXR-α) gene and its expression in the developing limb

   • E. A. P. Seleiro
   • A. Rowe
   • P. M. Brickell

   Original Articles Pages: 244 - 249

5. Mutations in supernova, indicate that this gene is required for the division of germ line cells in Drosophila

   • L. Billett
   • N. G. Brink

   Original Articles Pages: 250 - 258

6. Mutations in neuromusculin, a gene encoding a cell adhesion molecule, cause nervous system defects

   • Artur Kania
   • Hugo J. Bellen

   Original Articles Pages: 259 - 270

7. Neural and smooth muscle development in the chicken gizzard

   • Astrid Zimmermann
   • Anke Haina
   • Ute Gröschel-Stewart

   Short Communications Pages: 271 - 275

8. Metamorphosin A is a neuropeptide

   • Thomas Leitz
   • Marion Lay

   Short Communications Pages: 276 - 279