The “Wash” of an Aeroplane
The Return of Halley's Comet
Hudson and His Exploration of the Hudson River
The Four Periods of Hudson River History
Fulton and His Life Work
Electrical Fireballs: What Are They?
Supersensitiveness of the Blind
What is Heat Lightning?
Does Municipal Ownership Pay
How Finger and Thumb Marks Were Discovered Through a Photographic Proof
Development of the Hudson River Steamboat
American Steamboats Prior to the Clermont
European Steamboats "Prior" to the "Clermont"
The American Walking-Beam Engine
Three Hundred Years of New York
Recently Patented Inventions
Index of Inventions