1. Landmarks in developmental biology

   • Klaus Sander

   Essay Pages: 1 - 3

2. Follistatin inhibits the mesoderm-inducing activity of activin A and the vegetalizing factor from chicken embryo

   • Makoto Asashima
   • Hiroshi Nakano
   • Kei Kinoshita

   Original Articles Pages: 4 - 7

3. Polar effects of concanavalin A on the cortical cytoskeleton of a molluscan egg (Nassarius reticulatus, Gastropoda)

   • Johanna E. Speksnijder
   • Katja J. Teerds
   • M. René Dohmen

   Original Articles Pages: 8 - 20

4. Cell lineage-specific inhibition of cytokinesis by concanavalin A in a molluscan embryo (Nassarius reticulatus, Gastropoda)

   • Johanna E. Speksnijder
   • M. René Dohmen
   • Katja J. Teerds

   Original Articles Pages: 21 - 26

5. Stages in the development of the embryo of the fresh-water crayfishCherax destructor

   • Renate Sandeman
   • David Sandeman

   Original Articles Pages: 27 - 37

6. The pattern of protein and glycoprotein synthesis in presumptive lens and non-lens ectoderm of the chicken embryo

   • Charles H. Sullivan
   • Joseph P. Hart
   • Jana Kramer

   Original Articles Pages: 38 - 44

7. Budding and strobilation inAurelia (Scyphozoa, Cnidaria): Functional requirement and spatial patterns of nucleic acid synthesis

   • Laura Joan Balcer
   • Robert E. Black

   Original Articles Pages: 45 - 50

8. The involvement of mitochondria in carbon metabolism in cleavingXenopus embryos

   • Mark B. Dworkin
   • Eva Dworkin-Rastl

   Original Articles Pages: 51 - 57

9. The development ofTriturus cristatus under osmotic stress

   • Hugh Wallace

   Short Communication Pages: 58 - 60