Abstract
This report covers the investigations of the Laboratory of Archeological Technology of the Institute of Archeology of the Academy of Sciences of the U.S.S.R. under the technical direction of Corresponding Academician I. Ye. Starik. This work was begun in 1956, but the bulk of the dates were obtained during 1959–61 by the ethyl-benzol technique. For a control, ethyl-benzol was synthesized from the annual rings of the heartwood of an 80-yr-old larch. Depending on the size of the sample submitted for analysis, from 15–70 ml of ethyl-benzol was used.

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