HARPER'S WEEKLY, New York, May 4, 1901  The Long Island Automobile Club's 100-Mile Endurance Test; The Cuban Situation; The Political Outlook in Mexico; doublepage centerfold "The American Steel Industry: Pressing Armor-Plate In The Homestead Mills" by Peters; The Awakening of Coney Island; Colonel Alfred H. Belo; and other news of the day.