Electric Sign Monstrosities, New York's New Subway, and more

Engineering- September 24, 1910

Aeronautics- September 24, 1910

Science- September 24, 1910

The Humphrey Gas Pump at the Brussels Exhibition

A Novel System of X-Ray Cinematography

Testing Weights and Measures in New York City

How the Capacity of the New York Subway Power Plant was Doubled

Finish of the Harvard-Boston Aviation Meet

Mexico City's New Water Works System

Dew with a Cloudy Sky

Magic for Amateurs--XI

Miscellaneous Tricks

The Current Supplement, The Shallowest Large Lake, and more

The Inventor's Department - September 24, 1910

Simple Patent Law; Patent Office News; Inventions New and Interesting