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What Can Be Done for Inventors--Advice Gratis and Advice for Pay
Too Heavy Shot for Light Guns
The United States and Canadian Reciprocity--Patent Laws
The Navy Department and Iron-Clad War Steamers
The Ancient Savages of Europe
Subjects for Inventions
Steam Rams and Their Qualities
Saving Ten Per Cent of Flour
Recent American Inventions
Plumbing and Soldering Lead Pipe
Issued from the United States Patent Office
Our Navy--Who is to Blame?
Our Navy a Year Ago
Notes on Military and Naval Affairs
New Steam Floating Battery
Monier's Gas Burner
Jealousy Between the Army and Navy
Improved Planing Machine, Dangers of Benzine in Varnish Making
History of Turbine Water Wheels
Excitement on Hose Couplings
Can Guncotton Be Used for Army Purposes ?
California Statistics and Progress
Artillery Matches and Signals
Armstrong Guns on the Merrimac
A Splendid Specimen of California Workmanship--Hansbrow's Pump
Notes and Queries
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