They attribute Napa's higher environmental
burden in part to its tradition of harvesting grapes by hand, which requires more equipment hours
than does machine harvesting, and the common practice of reducing the number of grapes on each vine to control sugar content and boost
flavor.
Historical memory here becomes more menacing and abstract
than the personal reveries of Johns; the
burden of the past threatens entirely to overwhelm and smother the capital «I.» The dancing silhouettes with which the African - American artist Kara Walker works not only have a historical
flavor but also tellingly represent the flattened, partial, and cut - up sensibilities of oppressed people.