To Stimulate Chemical Discovery

Cost of Electric Water Power Plants

Inauguration of the Rapid Transit Subway

Romance of a Scientific Age

A New Process of Making Trichromatic Lantern Slides

Device for Pulling Tacks and Nails from Pneumatic Tires

Improved Lime Kiln

A Solar Reducing Furnace

By the St. Louis Correspondent of the Scientific American

Opening of the New York Rapid Transit Subway

Passenger Locomotive with Vanderbilt Tender

Effect of Shell Fire on the Russian Cruiser "Askold"

Eskimo Village at the World's Fair

By the St. Louis Correspondent of the Scientific American

Preparations for the Airship Contest at St. Louis

The Mounting of Butterflies for Nature Study