NYC's First Subway, A One Block Pneumatic Tunnel Below Broadway - Untapped New York
Beach Pneumatic Transit: The 1870 Subway That Could Have Been? | New-York Historical Society
Beach Pneumatic Transit: The 1870 Subway That Could Have Been? | New-York Historical Society
Beach's First Subway: Pneumatic Transit System - Sometimes Interesting
Beach Pneumatic Transit - Wikipedia
New York's First Subway was Pure Luxury
Were these Victorian train lines just a load of hot air? | Tycho's Nose
The Beach Pneumatic Transit Company – just a bunch of hot air? | MCNY Blog: New York Stories
The Beach Pneumatic Transit Company – just a bunch of hot air? | Museum of the City of 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
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
Beach Pneumatic Transit: The 1870 Subway That Could Have Been? | New-York Historical Society
New York City Subway Guide: Facts & Tips
A brief history of when trains ran on air | Engadget
The First Subway: Alfred Ely Beach's Marvelous Pneumatic Transit - The Bowery Boys: New York City History
The Beach Pneumatic Transit Company – just a bunch of hot air? | Museum of the City of New York
Beach Pneumatic Transit: The 1870 Subway That Could Have Been? | New-York Historical Society
Our First Subway Was Much Nicer - Gothamist
New York Pneumatic Railroad | Ghostbusters Wiki | Fandom
nycsubway.org: Beach Pneumatic Transit
NYC's First Subway, A One Block Pneumatic Tunnel Below Broadway - Untapped New York
Beach Pneumatic Transit - Wikipedia
ALFRED ELY BEACH'S PNEUMATIC SUBWAY: THE SECRET TUNNEL BELOW NEW YORK CITY | by Charlie O'Brien | Medium
The Pneumatic Subway That Almost Was - JSTOR Daily
Site of the Beach Pneumatic Subway – New York, New York - Atlas Obscura
