SCIENCE AND ENGINEERING
A WORLD-RENOWNED engineer, when asked, during the course of this survey, how he would solve the problems of railroad transportation answered, "Science and engineering, there is the solution."
He might have indicated, had it been necessary, that research is certain to disclose the usefulness of materials or means at hand and engineering will get full practical value from them. More than a hundred years ago the possibility of the future railroad already existed in the toll road with its right of way; the wheel, then believed to have been made responsive to every possible need; iron, long the servant of society; electricity, recognized though not controlled. From these simple components, necessity, luck, ingenuity and some conscious experimentation have created the powerful, swift, elastic, all-year-round, highly dependable railroad transportation systems of today. But remarkable as they are, should their completed perfection be assumed, any more than the first wheel made by primitive man, miracles though it wrought for him, should have been assumed to be the last? New eliminations of awkwardness and waste; new coördinations of known elements; new recognition of unknown elements--these are always around