Abstract
The belief that the bow and arrow replaced the spear and/or dart as hunting weapons in eastern North America between 1500 and 1200 B.P. is tested using a classification function that identifies bifaces as either spear/dart or arrow points. Results and their alternative interpretations bear important implications for the timing and nature of the technological transition. Moreover, the economic consequences of the transition are at once subtler and less profound than often supposed. Ethnographic data do not support simple notions of a uniform increase in acquisition efficiency across target species with the adoption of the bow and arrow.