The key to the future of the United States relations with its sister republics in South and Central America may well be found in this exhaustive study of Chile-United States relationships. The South American nation's relatively small population belies the powerful influence it wields in all American Hemisphere councils. For more than a century a small and tightly-knit group of upper and middle social sectors, representing a fairly broad cross-section of functional interest groups, has controlled the country's destiny. From 1880 to 1933 the course they followed led to many abrasive...