Alger Hiss, former holder of several Federal posts, sued Whittaker Chambers for $50,000 slander and libel damages in Baltimore yesterday. Hiss charged that the Time editor's statements about his alleged Communist Party membership were false. In Washington, the House Un-American Activities Committee urged spy trials for four persons, including two atomic bomb scientists.

President Truman, carrying on his campaign from Bonham, Texas, said that "the people must turn to the Democratic Party for a government that works in the interests of "all the people." The President asserted he wanted no part of a "unity offered by a Republican Party that would lot prices go sky high."

In the Pacific northwest, GOP candidate Governor Dewey charted a vast development of natural resources to give America "more power to wage the peace." Dewey's running mate Governor Warren entered New England, declaring that government must be revitalized at the state and local level.

The weather: Sunny and warm with highest temperatures in the middle 70's.