IMPROVED BUILDING BLOCKS. He Wanted to Sell a Patent Machine. Knight's New Mechanical Dictionary. vs . A POCKET LUNG TESTER. A LIFE-PRESERVING CAP AND CAPE. An African International Exposition. 4I The Effects of Physical Culture. Dangers of the Sea., scientific american, 1876-10-14

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IMPROVED BUILDING BLOCKS. He Wanted to Sell a Patent Machine. Knight's New Mechanical Dictionary. vs . A POCKET LUNG TESTER. A LIFE-PRESERVING CAP AND CAPE. An African International Exposition. 4I The Effects of Physical Culture. Dangers of the Sea., scientific american, 1876-10-14

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