Features
How to Exterminate Roaches
New Route to California
Cracker and Biscuit Rolling and Cutting Machine
Pacific Rail Road
To Get Rid of Grain Weevils
Pennsylvania Railroad
Bellefontalne and Indiana Railway
Cave in California
Cure for Cancer
Steamboat Boilers
Charcoal for Cisterns
Destitution in Glasgow, Scotland
Indestructibility of Enjoyment
Stone Cavalry
Liquid Gold
Subterranean Lake at Lancaster
Telegraph Profits
Maryland Institute
The Atlantic
The Census Law for 1850
The Descendants of Robert Burns
Old Rice
Colonel Fremont
Old Tan Bark
Parsnips for Pigs
Death from a Pin
Death of a Great Man
Prospects of the Wool Trade for 1850
Western Giants
Philosophy of Mechanics
Table of the Board Measure of Logs
The Patent Office and Reform of the Patent Laws
The Use of Oxide of Zinc is not Injurious to Health
Self-Adjusting Churn
Improvement on Hanging Brakes for Railroad Cars and other Machinery
Ingram's Improved Water Closet
New Kind of Black Ink
New Serving Mallet for Riggers
Chromatype
Oil Stone
Tight Pantaloons and Tobacco
Proposed New Description of Railway
Splendid Present
Light and its Effects—Gothic Churches
New American Coins
Patent Case—India Rubber Pontoon Boat
Perspiration
Propeller Improvements
The Solvent Properties of Caloric, Similar to Acid Gases
John Bull Turning Yankee
List of Patent Claims
Useful Statistics
Accoustics
Petrification
Mathematics of Bees
Inventors and Mechanics
History of Propellers and Steam Navigation
Divisibility of Matter
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To Correspondents
- Letters
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