nycsubway.org: Beach Pneumatic Transit
Beach Pneumatic Transit: The 1870 Subway That Could Have Been? | New-York Historical Society
Site of the Beach Pneumatic Subway – New York, New York - Atlas Obscura
Beach's First Subway: Pneumatic Transit System - Sometimes Interesting
nycsubway.org: Beach Pneumatic Transit
SCIENCE | The First Subway — Rose Tibayan
New York City Almost Had Subway Trains That Worked Like Soda Straws – From the Public Domain
Feb. 26, 1870: New York City Blows Subway Opportunity | WIRED
Beach Pneumatic Transit - Wikipedia
Feb. 26, 1870: New York City Blows Subway Opportunity | WIRED
nycsubway.org: Beach Pneumatic Transit
NYC's First Subway, A One Block Pneumatic Tunnel Below Broadway - Untapped New York
New York's First Subway was Pure Luxury
City Hall Subway Station - YouTube
The First Subway: Alfred Ely Beach's Marvelous Pneumatic Transit - The Bowery Boys: New York City History
Beach Pneumatic Subway | Ephemeral New York
Blown Opportunity: New York City's Failed Pneumatic Trains | Gadgets, Science & Technology
nycsubway.org: Beach Pneumatic Transit
The Beach Pneumatic Transit Company – just a bunch of hot air? | MCNY Blog: New York Stories
New York City's Pneumatic Subway, a Primitive Hyperloop
Van Horne! Pneumatic transit! I can't believe it's still here!", or In the NYC City Hall Subway Station At Long Last — Vivian Shaw
The Pneumatic Tube Mail System in New York City - Untapped New York
The New York City subway system opened 110 years ago today; An interview with The Race Underground author Doug Most - The Bowery Boys: New York City History
nycsubway.org: Beach Pneumatic Transit
The Beach Pneumatic Transit Company – just a bunch of hot air? | MCNY Blog: New York Stories
