It is a notorious fact that the business and shopping district of Chicago is at present strangled by the elevated railroad loop, which bounds the center of the city, and it is essential for the welfare of the city that this area be extended and made more spacious. The City Plan provides for a "quadrangle" to cover three square miles at the heart of Chicago, to be bounded on the east by Michigan Avenue, on the north by Chicago Avenue, on the west by Halsted Street, and on the south by Twelfth Street. When this work is done these streets will have been turned into wide boulevards, and other streets, running through the quadrangle, will also have been widened and improved, principal among these being Congress Street, which though not at present cut through, will ultimately form a great central artery, leading back from the lake, through the center of the quadrangle, forming the axis of the plan, and centering on a "civic center," which is to be built at the junction of Congress and Halsted Streets and from which diagonal streets will radiate in all directions. Nor does the plan end here. A complete system of exterior roadways will some day encircle the city; the water front along the river will be improved and new bridges built; also two outer harbors will be developed. By an agreement with the city, no major public work of any description is inaugurated until the Plan Commission has passed upon its harmonious relationship with the general scheme. The Commission further considers the comprehensive development of the city's steam railway and street transportation systems; very recently it successfully opposed a railroad union depot project which was inimical to the Plan of Chicago, and it has generally succeeded in persuading the railroads to work in harmony with the plan, when making immediate improvements. One of the most interesting and intelligently conducted departments under the Commission has to do with the education of the people of Chicago with regard to the Plan. A great deal of money and energy has been expended in this work, with the result that city-wide misapprehension concerning the Plan has given place to city-wide comprehension. Lectures are given before schools and clubs with the idea of teaching Chicago what the plan is, why it is needed, and what great European cities have accomplished in similar directions. Books on the subject have been published and widely circulated, and one of these, "Wacker's Manual," has been adopted as a textbook by the Chicago Public Schools, with the idea of fitting the coming generations to carry on the work.