title: Prehistoric blood residues: detection on tool surfaces and identification of species of origin.
abstract: Blood residues from several animal species have been discovered on the surfaces of chert, basalt, and obsidian prehistoric tools (1000 to 6000 years old) from open-air sites along the western coast and in the northern boreal forest of Canada. A screening test has been developed to detect residual blood. Hemoglobin has been crystallized from the residues, and the species of origin determined.
authors.forename: T H
authors.initials: TH
authors.lastname: Loy