1. Myotomal myogenesis inBombina variegata L.

   • L. Kiełbówna
   • B. Kościelski

   OriginalPaper Pages: 295 - 303

2. Untersuchungen zur Bildung der Vomerspange beiSalamandra salamandra (L.)

   • Günter Clemen

   OriginalPaper Pages: 305 - 321

3. Cytological changes and DNA and protein synthesis in parthenogenetically activated sea urchin eggs

   • Seiko Nakashima
   • Masaru Ishikawa

   OriginalPaper Pages: 323 - 332

4. Ultrastructural changes in the distal wing bud of the chick embryo after removal of the apical ectodermal ridge

   • Eero A. Kaprio

   OriginalPaper Pages: 333 - 346

5. Sulfate and glucosamine labelling of the intercellular matrix in vitellogenic follicels of a moth

   • William H. Telfer

   OriginalPaper Pages: 347 - 362

6. Fusion ofDrosophila eye-antennal imaginal discs during differentiation in vitro

   • Martin J. Milner
   • John L. Haynie

   OriginalPaper Pages: 363 - 370