
doi: 10.1086/200815
The CA* reviews of Karl Butzer's fine book, Environment and Archeology (CA 7:501-12), have interesting features which require further comment: 1) The average on the C14 dates for the early worked copper from ;ay6nii given by Braidwood (p. 504) appears to be misprinted. They average out to 7,000 B.C. and not 7,000 B.P. as listed. This would thus be the earliest known worked copper in the world. 2) Balout (p. 502) says of Butzer's approach:
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