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Issued from the United States Patent Office - pp394 - 395
doi:10.1038/scientificamerican08251855-394
American Association for the Advancement of Science,—No. 1 - p395
doi:10.1038/scientificamerican08251855-395
Improvement in Safety Railroad Drawbridges - p395
doi:10.1038/scientificamerican08251855-395a
Experiments with the Blades or Paddle Wheels - p397
doi:10.1038/scientificamerican08251855-397a
The $10,000 Reward for a Marble Sawing Machine - p397
doi:10.1038/scientificamerican08251855-397b
Anointing with Oil and Washing with Water - p398
doi:10.1038/scientificamerican08251855-398h
New Project for Crossing the Atlantic in Three Days - p400
doi:10.1038/scientificamerican08251855-400c
