INVESTIGATIONS: To Be Continued

At his Maryland farm, where he had hidden the pumpkin papers, Whittaker Chambers sat in an easy chair near a big Christmas tree that curled against the ceiling. Before him last week sat three eager listeners: South Dakota's Karl Mundt, California's Richard Nixon of the House Un-American Activities Committee, and the committee's retiring chief investigator, Robert Stripling. Chambers, under oath, puffed on a pipe as he gave further testimony in the Communist spy inquiry and interspersed it with his observations on the evidence already gathered.

Chambers said he regretted that public attention had concentrated on what amounted to "a kind...