Keeping the Health of a City

The Double-Deck Car for Rapid Transit

Certain Curious Effects of the Violet Rays

Fruit and Nuts as Food

Science Notes - October 10, 1903

The Flight of Birds Mechanically Studied

The Barney Brick Conveyer

The Petroleum Districts and Mud-Volcanoes of Java

The Largest Hydraulic Canal Locks in the World

An Ingenious Sculpturing Machine

By the London Correspondent of the Scientific American

A New Aeroplane

Indian Granaries

Business and Personal Wants