Table of contents
Recently Patented Inventions
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How the Law May Prevent Railroad Accidents - p506
doi:10.1038/scientificamerican06221907-506
We Build a Locomotive on the Metric System - p506
doi:10.1038/scientificamerican06221907-506a
Another Long-Distance Transmission in California - p506
doi:10.1038/scientificamerican06221907-506c
Result of the Motor Boat Race to Bermuda - p507
doi:10.1038/scientificamerican06221907-507a
The Wellman Polar Airship Expedition - pp509 - 510
doi:10.1038/scientificamerican06221907-509
Double-Deck Streets as a Relief for Traffic Congestion - p510
doi:10.1038/scientificamerican06221907-510
The Art and Craft of the Medalist - pp511 - 512
Victor D. Brenner
doi:10.1038/scientificamerican06221907-511a
Mechanical Masterpieces of the Eighteenth Century - pp513 - 514
Alfred Gradenwitz
doi:10.1038/scientificamerican06221907-513
Spark-Producing Mechanism for Explosion Engines - p516
doi:10.1038/scientificamerican06221907-516b