[Various (1971)] The time span of the Laurentian in southeastern Canada, New York and New England, on present limited C-14 determinations, falls between c. 3300 and 2000 B.C., with the oldest dates to the north, in the Ottawa Valley. Here two determinations have been made on samples, which appear to relate to separate phases of the Laurentian as recognized in New York. The older date of 3300 B.C., from human bone on the Alumette Island-1 site, is assigned by the finder, Clyde C. Kennedy, to the Vergennes complex (Kennedy 1970: 61-63 and by correspondence). The Vergennes phase, still undated in Vermont and northeastern New York, where it is best represented, is stratigraphically the oldest recognized Laurentian culture (Ritchie 1965a: 87; 1968; 1969a: 84-89). The second date and cultural identification is Kennedy's 2750 B.C. ± 150 years (GSC-162) for the Morrison's Island-6 site, also in the upper Ottawa Valley, which produced burials and artifacts apparently closely related to the Brewerton phase of central New York (Kennedy 1966; 1970: 59-60). In New York State only a few radiocarbon dates have so far been obtained for sites of the Laurentian tradition. Two of these relate to the rather poorly defined Vosburg phase, found principally in the Hudson Valle y (Ritchie 1965a: 83-84). These hearth charcoal dates are 2524 B.C. ± 300 years (M-287) for the Bannerman site (Ritchie 1958: 67) and 2780 B.C. ± 80 years (Y-1535) for the Vosburg level at the Sylvan Lake site (Funk 1965: 145-146).