

Smithsonian Institution radiocarbon measurements III.
Abstract
Most of the analyses here listed were performed during 1965 and include archeologic samples from eastern and central United States, Costa Rica, Colombia, Venezuela, Brazil, and Iran; and geologic samples from Arizona, New Mexico, South Carolina, and Maryland.
Keywords
Costa Rica;Smithsonian Inst. laboratory;United States and Costa Rica;Central America;list;United States;C 14;carbon;dates;isotopes;radioactive isotopes;absolute age