1. Phenocopies ofBithorax mutants

   • M. P. Capdevila
   • A. García-Bellido

   OriginalPaper Pages: 105 - 126

2. Über die Funktion desalb-Locus in der Ommochrom-Endsynthese beiEphestia kühniella Z.

   • Klaus Cölln
   • Günter Klett

   OriginalPaper Pages: 127 - 136

3. Cell proliferation and morphogenesis of the apical ectodermal ridge in the pectoral fin bud of the trout embryo (Salmo trutta fario L.)

   • Jean Bouvet

   OriginalPaper Pages: 137 - 154

4. Reaggregation of sponge cells: Specificity and recovery of adhesion

   • Sreedharan Kartha
   • Sivatosh Mookerjee

   OriginalPaper Pages: 155 - 165

5. Action du cordo-mésoderme dorsal sur la régionalisation et la différenciation du massif endodermique chezRana dalmatina Bon. (Amphibien Anoure)

   • Jacques Albert

   OriginalPaper Pages: 167 - 183

6. The distribution of nerve cells inHydra attenuata Pall.

   • L. Epp
   • P. Tardent

   OriginalPaper Pages: 185 - 193

7. Retinoic acid causes the development of feathers in the scale-forming integument of the chick embryo

   • Danielle Dhouailly
   • Margaret Hurlstone Hardy

   Short Communication Pages: 195 - 200