From the March 15, 1930, issue

LARGEST BOILER

One of the three largest boilers in the world is shown on the front cover. The boilers were recently installed in the East River station of the New York Edison Company to run the largest single-unit electric generator in the world.

If this 215,000-horsepower turbo-generator had been developed in 1906, it could have supplied all current used for lighting in the United States.