THE VIXENS (347 pp.)Frank YerbyDial ($2.75).
As drugstore fiction, this novel fills an even simpler prescription than its profitable predecessor, The Foxes of Harrow (which stayed triumphantly high on the best-seller lists for more than a year, was sold to 20th Century-Fox and grossed Au thor Frank Yerby something like $250,000). The hero of The Vixens is lean and hard; he moves with controlled grace, and he says everything softly. The girl is slim and golden, her mouth is a splash (some times a slash) of scarlet, and her perfume is faint, elusive. These two daydreams, so happily cast on any Hollywood...