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Improved Oscillating Engine, English vs French Iron-clads

Exhibition of Grain Dryers and Separators--To Merchants

The Bessemer Process in America

Miscellaneous Summary

Peat as Fuel

How English Locomotives are Made

The Hoosac Tunnel

Recent American Patents

Non-Explosive Gunpowder

Shaw & Justice's Low-Water Signal

Goddard's Pump Rod

Boswell's Improved Paper Tin

Experiments with Cast-Iron Rifled Guns

Utilizing Steam in Evaporating

A Curious Slotting Machine

The Cattle Plague

The Coasting Trade Being Done by Steamers

Patent Claims

Issued from the United States Patent-Office

The Fair of the American Institute

Patent Agency Office

Raumeister's Water Heater


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