1. Introduction 2. Origins of the Anthracite Pig Iron Industry 3. Early Manufacture of Iron in the Lehigh Valley, 1800-1840 4. Anthracite Iron Production in the Lehigh Valley, 1840-1854 5. Initiation and Organization of the Thomas Iron Company 6. The Age of Anthracite Pig iron, 1855-1875 7. The Thomas Iron Company, 1856-1875 8. Iron to Steel, 1875 - 1919 9. The Growth of Competition, 1876-1893 10. Old Paths 11. The Last Years