True alternatives: Boveri and Morgan arguing about the origins of honeybee gynanders Klaus Sander Essay Pages: 175 - 177
On the formation of the neural keel and neural tube in the zebrafishDanio (Brachydanio) rerio Cyrus PapanJosé A. Campos-Ortega Original Articles Pages: 178 - 186
Cell-lineage analysis of the prototroch of the gastropod molluscPatella vulgata shows conditional specification of some trochoblasts Peter DamenWim J. A. G. Dictus Original Articles Pages: 187 - 198
Role of ooplasmic segregation in mammalian development Sergei Vadimovich EvsikovLudmila Michailovna MorozovaAlexander Petrovich Solomko Original Articles Pages: 199 - 204
Effects of thyroxine and propyl-thiouracil on hindlimb regeneration of larvalXenopus laevis G. La MesaS. BernardiniS. Filoni Original Articles Pages: 205 - 214
Yolk sphere formation is initiated in oocytes before development of patency in follicles of the moth,Plodia interpunctella Graźyna ZimowskaPaul David ShirkEli Shaaya Original Articles Pages: 215 - 226
Head segmentation in the embryo of the Colorado beetleLeptinotarsa decemlineata as seen with anti-en immunostaining Richard Fleig Short Communications Pages: 227 - 229
Morphogenetic effects of 9-cis-retinoic acid on the regenerating limbs of the axolotl Panagiotis A. TsonisCharles H. WashabaughKatia Del Rio-Tsonis Short Communications Pages: 230 - 234