1. Histological analysis of the dynamics of growth of imaginal discs and histoblast nests during the larval development ofDrosophila melanogaster

   • M. Mandaravally Madhavan
   • Howard A. Schneiderman

   OriginalPaper Pages: 269 - 305

2. Hemoglobin transition in relation to metamorphosis in normal and isogenicXenopus

   • John J. Just
   • Josef Schwager
   • Rudolf Weber

   OriginalPaper Pages: 307 - 323

3. Gangliosides, sialoglycoproteins and acetylcholinesterase of the developing mouse brain

   • Harald Rösner

   OriginalPaper Pages: 325 - 335

4. Minute mosaics caused by early chromosome loss

   • A. Ferrús
   • A. García-Bellido

   OriginalPaper Pages: 337 - 349

5. Extrachromosomal DNA and the origin of oocytes in the telotrophic-meroistic ovary ofCreophilus maxillosus (L.) (Staphylinidae, Coleoptera-Polyphaga)

   • Małgorzata Kloc
   • Bohdan Matuszewski

   OriginalPaper Pages: 351 - 368