MOLDERS OF OPINION

Commentators and columnists -- new lords of the newspaper and radio world -- in short biographical sketches, comment on their hold on the public, personal tidbits little known to their public. A fair sampling of American journalism -- from the flesh and money pots of Winchell to the cautious analysis of the pedantic Raymond Swing. Pen profiles written by people who know them -- not too flattering, as they reveal the saccharine bathos of Heatter, the emotional egotism of Dorothy Thompson, the statesmanship of Summer Welles, the caustic crusading of John B. Kennedy.