I suggest, on the basis of a statistical analysis, that recently deter
mined ''conventional radiocarbon ages'' of Dead Sea Scroll documents a
re offset systematically by about +40 yr, leading to a similar overest
imate of the ages of these documents. Much closer agreement with paleo
graphic and specific dates is obtained when a correction of this magni
tude is made to the ''conventional C-14'' values. This indicates that
C-14 dates may convey more precise information about the ages of these
documents than initially recognized.