A Study of the Negro Policeman: Book Review Nicholas Alex, assistant professor of sociology at The City University of New York, holds a Ph.D. from the New School for Social Research and a B.S. from the Wharton School. He was formerly a research assistant with the Russell Sage Foundation, an instructor at Adelphi University, and has had working experience in his academic specialty-the sociology of professions and occupations-while an industrial engineer in the aircraft industry, later as business manager of the Walden School. This is his first book. In t