Structure and Biosynthesis of Cell Surface Carbohydrates (Drs. Akira Kobata and Seiichi Takasaki). Role of Oligosaccharides in the Intracellular and Intracellular Trafficking of Mammalian Glycoproteins (Dr. Ajit Varki). LEC-CAMs (Selectins): Lectin-Like Receptors Involved in Leukocyte Recruitment (Dr. Lloyd Stoolman). Animal Lectin: Possible Role in Development (Dr. Richard D. Cummings). Cell Surface Carbohydrates in Hematopoietic Cell Differentiation and Malignancy (Dr. Minoru Fukuda). Changes in Glycosylation Associated with Malignant Transformation and Tumor Progression (Dr. James W. Dennis). Glycoconjugates in the Development of the Nervous System (Drs. Miyuki Yamamoto and Gerald A. Schwarting). Cell Surface Carbohydrates and Mammalian Fertilization (Dr. Paul Wassarman). Early Embryogenesis (Dr. Takashi Muramatsu). Proteoglycans in Development (Dr. Daniel D. Carson). Developmental Glycobiology of Dictyostelium discoideum (Dr. Hudson H. Freeze).FEATURES: