Emerging Themes in Cognitive Development formatIsbn:Softcover 9781461392255 Frontmatter AVANT PROPOS CATÉGORIES van Oystaeyen Frontmatter AVANT PROPOS CATÉGORIES The first 20 years were characterized by a continuation of the research that had begun in the Wander institute and centered on the structure and function of the bacterial compound endotoxin the syntheses and innova tions proposed are not likely to escape the careful study of the serious scholar it will take longer for the concepts presented to capture the imagination of students and colleagues who are still invested in meritori ous research on other themes