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The “Wash” of an Aeroplane

The Selden Patent Case

The Return of Halley's Comet

Science

Engineering

Electricity

Hudson and His Exploration of the Hudson River

The Four Periods of Hudson River History

Fulton and His Life Work

Supersensitiveness of the Blind

How Finger and Thumb Marks Were Discovered Through a Photographic Proof

Electrical Fireballs: What Are They?

Does Municipal Ownership Pay

What is Heat Lightning?

Development of the Hudson River Steamboat

American Steamboats Prior to the Clermont

John Fitch

John Stevens

European Steamboats "Prior" to the "Clermont"

William Symington

The American Walking-Beam Engine

Three Hundred Years of New York

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September 25, 1909

Think Outside the Gift Box