Similar Material g70 8/22 pp. 17-20 Aluminum—Product of Frontiers Taming of the Niger Awake!—1970 When the Teton Dam Burst Awake!—1976 Watching the World Awake!—1982 Power From the Heart of a Mountain Awake!—1991 The Biggest Man-Made Hole in the World Awake!—1993 Most Common Metal Awake!—1970 One More Job for the Busy Bee Awake!—1982 Wealth from the Solomon Islands Awake!—1975 Canada’s Magnificent “Moving Roadway” Awake!—1994 Power From the Snow Awake!—1997