1. One billion wild horses ; the challenge of the machine. Abridged from the book Men and machines (Macmillan, 1929) for the League for Industrial Democracy. Title: One billion wild horses ; the challenge of the machine. Abridged from the book Men and machines (Macmillan, 1929) for the League for Industrial Democracy. Date: 1930. Author: Chase, Stuart, 1888-1985. Collecting Area: Political Pamphlets