A textbookish summary of early agriculture and modern American practice, the more textbookish for its mushy generalizations, bland establishment orientation, and narrow focus on mechanical advances. ""Today's farms utilize a vast array of machinery,"" proclaim the Shuttlesworths, who mention harvesters, balers, and other power tools as well as modern methods of irrigation and the ""challenge""--to be worked out by ""the kind of teams that have already produced great achievements""--of changing plants to suit the mechanical pickers. Among the authors' brochure-level messages are the following: Cattle raising today involves ""great expenses""; modern chicken factories bring us daily treats; the energy crisis might mother a new revolution in agriculture (as previewed in the Kaplan Industries' showcase ""closed ecology system"" of cattle farming); and though pests and pesticides are problems, if others cooperate with Department of Agriculture policies ""the insect challenge should be met with ever-increasing success."" The Shuttlesworths end on the upbeat with a cursory review of ""farm varieties"" (hydroponics, fish farming, use of seaweed) and a listing of agriculture careers, concluding that though unskilled jobs are steadily decreasing, ""many opportunities lie ahead."" A superficial, dull gloss.