Civil libertarian Dr. Homer A. Jack, executive director of the National Committee for a Sane Nuclear Policy, spoke at Vassar about "The Problem of Fall Out Shelters."  A former Unitarian minister in Evanston, IL, Jack had attended the Geneva Disarmament Conference. Emphasizing the urgency of action on nuclear disarmament, Dr. Jack told of his recent interview with pacifist philosopher Dr. Albert Schweitzer, who, in 1958, "indicated that those who care must 'bark out' against atomic testing and nuclear war. In this recent interview, he said it was no longer suffiicient to just 'bark out' like dogs in the African night; we must 'bite out.' It is not enough to cry out about the imposing threat; we must act."     The Miscellany News