Contents: The industrial status of iron; The geologic and chemical relations of iron; The iron minerals and their relationships; The formation of iron ore deposits; Replacement and cavity feelings; Alteration deposits; Igneous iron deposits; Basal factors in ore valuation; Prospecting and tonnage determinations; Mining conditions and costs; Furnace and mills requirements; Composition and concentration of iron ores; Ore prices, profits and markets; The effect of time on valuation; Iron ores of the United States; the Lake Superior District; The Southern United States; The North-Eastern United states; The Western United States; Newfoundland and Canada; West Indies, Mexico and Central America; South America; Asia, Africa and Australia; The extent of American ore reserves; Probable duration of American reserves; Ownership and control of American reserves; Iron ore reserves in the world; World competition in iron and steel; Question of public policy; Question of private policy.