Week Ending November 12 1887. THE RICH COAL FIELDS OF COLORADO. BOOKS FOR THE INSANE IN ASYLUMS. 4 THE AMERICAN INSTITUTE EXHIBITION This dynamo supplies a current to 500 incandescent 'fans etc., scientific american, 1887-11-12
Week Ending November 12 1887. THE RICH COAL FIELDS OF COLORADO. BOOKS FOR THE INSANE IN ASYLUMS. 4 THE AMERICAN INSTITUTE EXHIBITION This dynamo supplies a current to 500 incandescent 'fans etc., scientific american, 1887-11-12
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