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"The rudder of the Japanese cruiser "Azuma" of 9,300 tons, was repaired by using a 4,500- ton floating dock to lift the stern of the ship clear of the water. To prevent the ship from sliding out of the dock, she was anchored to the structure by chains and s teel hawsers."
A Submersible, Anti-Submarine Buoy
The Priorities Committee of the Council of National Defense and How It Answers this Question
How "Potash from Cement" has been Twisted into Cement from Potash
Field Hospitals for the Treatment of Sick and Wounded Animals
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Short note on putative petroleum reserves.