THE HON. BENJAMIN BUTTERWORTH. NO BIDS FOR ARMOR PLATE. THE POPULATION OF SWITZERLAND. PRODUCTION OF RAIN BY GREAT FIRES. PRACTICAL DIRECTIONS FOR SOLDERING ALUMINUM. HISTORY OF THE AMERICAN LOCOMOTIVE. THE HON. BENJAMIN BUTTERWORTH COMMISSIONER OF PATENTS., scientific american, 1897-04-17


THE HON. BENJAMIN BUTTERWORTH. NO BIDS FOR ARMOR PLATE. THE POPULATION OF SWITZERLAND. PRODUCTION OF RAIN BY GREAT FIRES. PRACTICAL DIRECTIONS FOR SOLDERING ALUMINUM. HISTORY OF THE AMERICAN LOCOMOTIVE. THE HON. BENJAMIN BUTTERWORTH COMMISSIONER OF PATENTS., scientific american, 1897-04-17


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