Corrections and Clarifications


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Science  26 Oct 1990:
Vol. 250, Issue 4980, pp. 494
DOI: 10.1126/science.494-b


In the report "Single-crystal 40Ar/39Ar dating of the Eocene-Oligocene transition in North America" (17 Aug., p. 760), the affiliation of first author Carl C. Swisher III should have been given as the Institute of Human Origins Geochronology Center, 2453 Ridge Road, Berkeley, CA 94709.

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