Scientific Research and Invention 131
The very names of many of the standard stocks
on the Stock Exchange symbolize this new inventive
and scientific era; as, for instance, the radio, airplane
 and motion picture stocks, such as Radio Corporation,
 Curtiss-Wright, and Fox Films. A vast
number, whose names are not so indicative, are just
as definitely founded on new inventions—such as
Maytag and Remington-Rand, while a still larger
number, while of older vintage, such as American
Telephone and Telegraph, General Electric, Allied
Chemical and Dye, and Johns-Manville, have recently
 transferred or added to their processes new
inventions.
A whole group of companies are exploiting inventions
 for the supremely important purpose of increasing
 power and effecting mergers on the basis of
economies achieved through these inventions. Martin
 J. Insull, the Chicago power magnate, states that
as a consequence of the added power which invention
 has contributed to industry, the forty-five and
one-half million workers in the United States have
achieved an output equivalent to from six hundred
million to nine hundred million workers before the
power era.

Greater Productivity Per Unit
By the enterprise of Mr. Insull, who is a chief
executive of the electric power companies distributing
power over sections of the Middle West, a flood of
light is poured upon a main cause of America’s
recent prosperity. This appears in a study entitled