Features Improvement in Oscillating Engines Tooth Powders Mine of Alum List of Patent Claims Test for Mercury Kiln Drying by Dry Steam The New Law of Patents The Proposed Change in the Patent Laws Gold Extracting Machinery Agricultural Fairs.--Programme for 1856 Great Old and New Ships New Corn Planter Flavoring Matters Value of Patents Recent American Patents Resuscitation of Drowned Persons The Oceanic Survey A Great Chance for Inventors Scientific Explorations Notes on Patented Inventions.--No. 13 India Rubber Manufactures The Philadelphia Mint Great Trial of Mowing Machines The Consumption of Ice Important Items Important to Inventors To Correspondents Mechanics New Galvanic Battery Raising a Safe from a Sunken Steamboat For What Purpose were Plants Created Atmospheric Impurity and Disease The Annual Amount of Heat
