1. Morphogenesis in the embryo ofDrosophila melanogaster —germ band extension in the maternal-effect lethalmat(3)6

   • Wayne L. Rickoll
   • S. J. Counce

   OriginalPaper Pages: 245 - 251

2. Differentiation of the vitelline coat in the ascidianCiona intestinalis: an ultrastructural study

   • Franco Cotelli
   • Franca Andronico
   • Floriana Rosati

   OriginalPaper Pages: 252 - 258

3. Effect of theβ-d-galactoside-binding lectin on cell to substratum and cell to cell adhesion of cells from the extraembryonic endoderm of the early chick blastoderm

   • Nadine Milos
   • Sara E. Zalik

   OriginalPaper Pages: 259 - 266

4. Distribution and redistribution of pigment granules in the development of sea urchin embryos

   • Yuichiro Tanaka

   OriginalPaper Pages: 267 - 273

5. Regeneration in youngBunodactis verrucosa Pennant (actinaria, anthozoa)

   • Stanley Shostak

   OriginalPaper Pages: 274 - 282

6. Developmental aspects ofl-valine uptake by mouse intestine

   • Christos S. Bartsocas
   • Emmanuel Kavazarakis

   OriginalPaper Pages: 283 - 286

7. Properties of polar and apolar cells from the 16-cell mouse morula

   • Carol Ann Ziomek
   • Martin H Johnson

   OriginalPaper Pages: 287 - 296

8. Evidence for myosin heterogeneity inDrosophila melanogaster

   • K. Vijay Raghavan

   Rapid Communication Pages: 297 - 300

9. Drosophila melanogaster eggshell development: Localization of the s19 chorion gene

   • Claudine Zighera Yannoni
   • William Hugh Petri

   Rapid Communication Pages: 301 - 303

10. Announcements

    Announcement Pages: 304 - 304