Entelechy and the ontogenetic machine — work and views of Hans Driesch from 1895 to 1910 Klaus Sander Essay Pages: 67 - 69
Arachidonic acid and the control of body pattern inHydra Werner A. MüllerThomas LeitzWolf D. Lehmann Original Articles Pages: 70 - 76
Actin genes expressed during early development ofPatella vulgata André E. van LoonHans J. GoedemansJo A. M. van den Biggelaar Original Articles Pages: 77 - 84
An ultrastructural and developmental analysis of the corpus allatum of juvenile hormone deficient mutants ofDrosophila melanogaster Ji-da DaiLawrence I. Gilbert Original Articles Pages: 85 - 94
Flight muscle formation inDrosophila mosaics: requirement for normalshibire function of endocytosis Margaret Raper HummonWalter J. Costello Original Articles Pages: 95 - 102
Role of cell interactions in ascidian muscle and pigment cell specification William R. Jeffery Original Articles Pages: 103 - 111
Tracing neurons with a kinesin-β-galactosidase fusion protein Edward GinigerWilliam WellsYuh Nung Jan Original Articles Pages: 112 - 122
Cytoplasmic actin A3 gene promoter injected as supercoiled plasmid is transiently active inBombyx mori embryonic vitellophages Madeleine Coulon-BublexNicole MounierJean Claude Prudhomme Short Communication Pages: 123 - 127