1. Developmental changes of chromatin nonhistone proteins of sea urchin embryos

   • Ljiljana Ševaljević

   OriginalPaper Pages: 215 - 221

2. Dosage des activités de quelques hydrolases lysosomiques intestinales, au cours du développement larvaire deDiscoglossus pictus Otth, Amphibien Anoure

   • Jacques Hourdry

   OriginalPaper Pages: 222 - 233

3. A cytological and quantitative study of neoblasts in the naidOphidonais serpentina (Oligochaeta)

   • Alexander A. Bilello
   • Herbert E. Potswald

   OriginalPaper Pages: 234 - 249

4. Activity of a gene in transplanted oocytes in the annelid,Platynereis

   • A. Fischer

   OriginalPaper Pages: 250 - 251

5. Effect of length of aggregation time upon sorting-out behavior of cells from chick embryo tissues

   • Roland J. Lesseps
   • Gregory Glowacki

   OriginalPaper Pages: 252 - 259

6. Control of oocyte production, development, and release inDrosophila melanogaster

   • Kerry W. Holzworth
   • Calvin Spector
   • Frederick J. Gottlieb

   OriginalPaper Pages: 260 - 266

7. A unique cause of female sterility inDrosophila melanogaster

   • K. W. Holzworth
   • F. J. Gottlieb
   • C. Spector

   OriginalPaper Pages: 267 - 275

8. Effect of juvenile hormone on DNA synthesis during embryogenesis inAcheta domesticus

   • K. D. P. Rao
   • A. Krishnakumaran

   OriginalPaper Pages: 276 - 284

9. Alters- und kastenspezifische Veränderungen der Haemolymph-Protein-Spektren beiApis mellificia

   • W. Engels
   • H. Fahrenhorst

   OriginalPaper Pages: 285 - 296

10. Redox state of nicotinamide adenine nucleotide and phosphorylated state of adenine nucleotide in oocytes and embryos of the loach (Misgurnus fossilis L.)

    • Ludmila P. Yermolaeva
    • L. S. Milman

    OriginalPaper Pages: 297 - 301