Actin organization in the sea urchin egg cortex / Annamma Spudich -- Localization of bicoid message during drosophila oogenesis / Edwin C. Stephenson and Nancy J. Polrywka -- Actin and actin-associated proteins in xenopus eggs and early embryos : contribution to cytoarchitecture and gastrulation / Elaine L. Bearer -- Microtubules and cytoplasmic reorganization in the frog egg / Evelyn Houliston and Richard P. Elinson -- Microtubule motors in the early sea urchin embryo / Brent D. Wright and Jonathan M. Scholey -- Assembly of the intestinal brush border cytoskeleton / Matthew B. Heintzelman and Mark S. Mooseker -- Development of the chicken intestinal epithelium / Salim N. Mamajiwalla, Karl R. Fath, and David R. Burgess -- Developmental regulation of sarcomeric gene expression / Charles P. Ordahl.