During the nineteenth and the early twentieth century, European physicians and botanists working in the Dutch East Indies displayed an eager interest in Indonesian indigenous herbal medicine or jamu, the investigation of which required them to establish contacts with local informers and mediators who could make indigenous medicine understandable to researchers. In the Dutch East Indies, these mediators were Indo-European women who had built up a medical lore with both European and Indigenous elements. The diminishing trust in the standard therapeutic measures created a window of opportunity for the investigation of Indonesian indigenous herbal medicine. The way medical knowledge circulated in the Dutch East Indies, the intermediaries who aided this circulation and the factors which impeded or facilitated it, and the ways in which European physicians and botanists legitimized indigenous herbal medicine are analyzed.
