This paper addresses two disciplinary expansion trends in social sciences: in sociology, by denying the distinction between human and non-human; in archaeology, relying on the objet-mémoire concept, which associates the ideas of social interaction and memory processes. We discuss them from an ethnographic study of the ordinary containers in a biology laboratory. The signs, drawn or engraved on their surface, are a proxy for a joint analysis of artifacts, textuality, institutionalization processes, and social stratification. Rather than such disciplinary expansions, we argue in favor of an ethnography based on the “cultural technology” trend.