among the ablest practical scientific men in the world. The Patent Claims are published weekly and are invaluable to Inventors and Patentees. We particularly warn the public against paying money to Travelling Agents as we are not in the habit of furnishing certificates of agency to any one. Letters should be directed (post-paid) t MUNN & CO. 128 Fulton street New York Terms Terms! Terms One copy for One Year $2 Six Months $1 Five copies for Six Months $4 Ten Copies for Six Months for 815 $22 Twenty Copies for Twelve Months $28, scientific american, 1853-04-30


among the ablest practical scientific men in the world. The Patent Claims are published weekly and are invaluable to Inventors and Patentees. We particularly warn the public against paying money to Travelling Agents as we are not in the habit of furnishing certificates of agency to any one. Letters should be directed (post-paid) t MUNN & CO. 128 Fulton street New York Terms Terms! Terms One copy for One Year $2 Six Months $1 Five copies for Six Months $4 Ten Copies for Six Months for 815 $22 Twenty Copies for Twelve Months $28, scientific american, 1853-04-30


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