He edited the " Reports " of the Paris Exposition, to which he contributed chapters on Agricultural Implements and Clocks and Watches . Besides many official reports, he wrote the " American Mechanical Dictionary " ( 3 vol ., 1876 ), the " New Mechanical Dictionary " ( Boston, 1884 ), and A Study of the Savage Weapons at the Centennial Exhibition ( in the Smithsonian Institution's " Annual Report " for 1879, p . 213, Washington, 1880 ).
2.
He edited the " Reports " of the Paris Exposition, to which he contributed chapters on Agricultural Implements and Clocks and Watches . Besides many official reports, he wrote the " American Mechanical Dictionary " ( 3 vol ., 1876 ), the " New Mechanical Dictionary " ( Boston, 1884 ), and A Study of the Savage Weapons at the Centennial Exhibition ( in the Smithsonian Institution's " Annual Report " for 1879, p . 213, Washington, 1880 ).
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