Specification of the Cell Lineages:Determinants of Cell and Positional Fate in Ascidian Embryos, W.R. Jeffery.RNA Localization and Germ Cell Determination in Xenopus, M. Kloc, S. Bilinski, A. P-Y. Chan, L.H. Allen, N.R. Zearfoss, and L.D. Etkin.Asymmetric Germ Cell Division and Oocyte Determination during Drosophila Oogenesis, W. Deng and H. Lin.The Germline in C. elegans: Origins, Proliferation, and Silencing, G. Seydoux and T. Schedl.Assembly of the Drosophila Germ Plasm, A.P. Mahowald.Early Events in Mammalian Germ Line, R. Anderson, J. Heasman, and C. Wylie.Patterning of the Embryo:The Initial Phase of Embryonic Patterning in Mammals, R.L. Gardner.Cadherin and Catenins, Wnts and Soxs: Embryonic Patterning in Xenopus, A.L. St. Amand and M.W. Klymkowsky.Establishment of Left-Right Asymmetry, H.J. Yost.Initiation and Early Patterning of the Endoderm, D. Clements, M. Rex, and H.R. Woodland.Neural Patterning in the Vertebrate Embryo, C.R. Altmann and A. Hemmati-Brivanlou.Cell Biology of Limb Patterning, S.A. Schaller, S. Li, V. Ngo-Muller, M.-J. Han, M. Omi, R. Anderson, and K. Muneoka.Mechanisms to Establish Polarity and Initiate Cell Fate Determination:Defining Cis-Acting Elements and Trans-Acting Factors in RNA Localization, K. Yaniv and J.K. Yisraeli.RNA Localization and Translational Regulation during Axis Specification in the Drosophila Oocyte, R.L. Cooperstock and H.D. Lipshitz.Translational Control in Vertebrate Development, C.H. de Moor and J.D. Richter.Chapter References.Index.