Turn forward for addition and multiplication; backward for subtraction and division. Nothing could be simpler. By a simple turn of the crank -it does all your figure work You see as you go that your answer is correct. All factors of your problem are always in plain view. You can instantly detect and correct any error before it enters into your result-a feature that is not possible with any other machine. No experienced operator necessary. No reciprocals, complements or intricate rules. The Monroe makes it possible for you to go direct from problem to answer in the shortest time and with infallible accuracy. Compare the Monroe with any other calculating machine-any other. Get the full facts regardless of the machine you buy. Send the coupon now. Monroe Calculating Machine Company Offices in Principal Cities known to perform constant and satis- City and County officials all over the Send us your address so we can forward Watson Products Corporation Successors to Watson Wagen Co. FOR LIGHT AND POWER SERVICE EFFICIENT LOW FIRST COST AND MINIMUM UPKEEP KUHLMAN ELECTRIC CO. BAY CITY, MICH. What Maine Has Done and Hopes to Do for A pamphlet compiled by the State Highway Commission Akron and Its Planning Law. A study by Frank Backus Williams, of the New York Bar, of the legal powers of the city authorities of Akron with regard to the establishment of a city plan, in such matters as the acquisition of land for public use, the relocation of public and semi-public buildings, building regulation and zoning, and city planning finance. 1919. 40 pp. (Published by the Akron Chamber of Commerce.) References on War Memorials. An annotated list of references on war memorials, arranged under the following heads: General Works, Monuments-Sculpture, Community Houses, Trees, and Miscellaneous. A large number of references to THE AMERICAN CITY are noted in this list, especially under the third head, "Community Houses." (Prepared and issued by The New York Public Library, 476 Fifth Avenue, New York.) Excess Condemnation. A collection of facts in support of a proposed amendment Public Ownership of the Street Car Lines of A constructive program adopted by the Chicago Municipal Methods, Materials and Appliances News for Boards of Public Works, Engineers, Contractors, Purchasing Proper Apparatus Makes Better To bring joy to the hearts of the children using your playgrounds, you would most naturally install apparatus which will provide plenty of healthful, exhilarating play without any element of danger. The "ocean wave" made by the Hill Standard Manufacturing Company, 216 Fun-Ful Avenue, Anderson, Ind., well fulfills these specifications. The motion is a rotating and undulating movement combined. Children of all ages are very enthusiastic about it. The device will carry twenty children safely and can be propelled readily by one child. When completely assembled and ready for use the circle measures 56 feet in circumference. The same company makes a complete line of swings, ladders, slides and other playground apparatus. Proper Window Shades for the Of the many things that have contributed to the comfort of school children, none has been of more importance than the attention A WINDOW SHADE THAT ALLOWS FOR PROPER LIGHT AND VENTILATION given to the selection of window shades. It was discovered that light, penetrating thru certain colors of shade cloth, caused eye-strain, with its attendant ills of headache and numerous nerve troubles. Chemists of Cleveland, Ohio, made this a subject of study, and worked out a color in the Oswego tinted cambric shade cloth, manufactured by the Oswego Shade Cloth Company, that was adopted by the Board of Education of that city and used in all their schools. This shade cloth is made on a highgrade cambric muslin, with a soft, light green coloring rubbed into the mesh of the cloth, and the effect of the light penetrating thru this cloth is very easy on the pupils' eyes. Many of the school boards in the larger municipalities have installed window shades as shown in the illustration, in order to have perfect control of light and ventilation. A double bracket, furnished by the Stewart Hartshorn Company, 250 Fifth Avenue, New York City, is placed at the center of the window, and on this are hung two shades, one rolling up and the other down. Making Water Connections During August, 1919, the A. P. Smith Manufacturing Company, East Orange, N. J., completed eight 24-inch connections to a 72-inch steel line for the city of Jersey City. All of these connections were made under pressure of from 90 to 100 pounds. The work consisted of connecting special fittings to a 72-inch steel pipe and the making of 24-inch connections without interfering with the supply. This was exceedingly, important, inasmuch as the 72-inch line is the principal source of supply for Jersey City, and had anything happened to this pipe it would have meant that the entire city would have been shut off from water while repairs were being made. The city had contracted to lay a duplicate 72-inch line, and it was the connecting of the two lines which called for the above work. If the work had not been done by the use of the valve connecting machine, it would have JERSEY CITY WATER-SUPPLY CONNECTIONS, MADE WITHOUT INTERRUPTION OF SERVICE |