1. Lessons from a queen's lost offspring —Theodor Boveri on honeybee gynanders and other genetic mosaics

   • K. Sander

   Essay Pages: 121 - 123

2. Embryogenesis in mouth-breeding cichlids (Osteichthyes, Teleostei) structure and fate of the enveloping layer

   • Richard Fleig

   Original Articles Pages: 124 - 130

3. Patterns of protein synthesis in the imaginal discs of Drosophila melanogaster: a comparison between different discs and stages

   • Juan F. Santarén
   • Rosa Assiego
   • Antonio García-Bellido

   Original Articles Pages: 131 - 139

4. Epidermal growth factor and transforming growth factor alpha regulate extracellular matrix production by embryonic mouse palatal mesenchymal cells cultured on a variety of substrata

   • Michael James Dixon
   • David Foreman
   • James Ferguson

   Original Articles Pages: 140 - 150

5. Sequential emergence of the evenly spaced microchaetes on the notum of Drosophila

   • Kazuya Usui
   • Ken-ichi Kimura

   Original Articles Pages: 151 - 158

6. Identification of TGF-β-related genes in the early chick embryo

   • Irit Harris
   • Liliana Mizrahi
   • Eduardo Mitrani

   Short Communications Pages: 159 - 163

7. Embryonic appearance of rod opsin in the urodele amphibian eye

   • David Stephen McDevitt
   • Samir Kumar Brahma
   • Jean-Claude Jeanny

   Short Communications Pages: 164 - 168

8. Effects of retinoic acid on epiboly, convergence and gastrulation of embryos of the medaka, Oryzias latipes (Teleostei, Cyprinodontidae)

   • Petra Gevers
   • J. Manuel Denuce

   Short Communications Pages: 169 - 174