Scientific American Magazine

Ducker's Portable Barrack and Field Hospital

The Benefits of the Patent Laws

Car Builders Perplexed About Car Couplers

A Transcontinental Balloon Voyage

Photographic Notes

Electric Lighting as an Investment

A New Hand Truck

Feeding Stand for Poultry

Improved Tool Grinder

Muffler for Steam Valves

Improved Hand Truck

New Power Punching Presses

Boiler Feeder

The Spheroidal State of Water

Prismatic Gunpowder

Wood Wool

The Water Buck

A Hairy Elephant

Miscellaneous Inventions

To Inventors

Engineering Inventions

Correspondence

Notes and Queries

Index of Inventions

Business and Personal

New Books and Publications