Volume 24, Issue 19
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Features
Improved Wheat Steamer and Dryer
One Hundred Thousand Dollars Reward for a New Plan for Canal Propulsion
Uncommon Food
The Cotton Worm
Combined Milk Pail and Strainer
Mussel Climbing
Combined Blotter, Ruler, and Paper Cutter
Seifert's Balanced Steam Valve
The Removal of the Hell Gate Obstructions
Inspection of Steam Boilers
One Hundred Thousand Dollars Reward for a New Invention for Propelling Canal Boats
Compound Engines
Are Noisome Effluvia Injurious to Health?
Scientific Intelligence- May 6, 1871
More Humorous than Scientific
Answers to Correspondence- May 6, 1871
Recent American and Foreign Patents- May 6, 1871
Queries- May 6, 1871
Official List of Patents- May 6, 1871
Issued by the U. S. Patent Office