K.E. Latham, Epigenetic Modification and Imprinting of the Mammalian Genome During Development; G.M. Watson and P. Mire, A Comparison of Hair Bundle Mechanoreceptors in Sea Anemones and Vertebrate Systems; R. Mayor, R. Young, and A. Vargas, Development of Neural Crest in Xenopus; G. Schubiger and L. Maves, Cell Determination and Transdetermination in Drosophila Imaginal Discs; A. Bejsovec and H. Dierick, Cellular Mechanisms of Wingless/Wnt Signal Transduction; J.B. Miller, L. Schaefer, and J.A. Dominov, Seeking Muscle Stem Cells; A.K. Groves and M. Bronner-Fraser, Neural Crest Diversification; T. Goliber, S. Kessler, J-J Chen, G. Bharathan, and N. Sinha, Genetic, Molecular, and Morphological Analysis of Compound Leaf Development; Subject Index; Contents of Previous Volumes.