Abstract :
In response to the call issued April 19, 1920 by the Joint Conference Committee representing the American Society of Civil Engineers, the American Institute of Mining and Metallurgical Engineers, the American Society of Mechanical Engineers and the American Institute of Electrical Engineers, about 140 delegates representing 71 societies, having an aggregate membership of over 110,000, convened in Washington, D. C., June 3–4, 1920.