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Show ooooooooo r Essential in every home o o ..J (detach here) FIRST CLASS PERMIT where education MAIL THIS CARD NOW FOR FREE PREVIEW BOOKLET i BUSINESS REPLY MAIL NO POSTAGE STAMP NECESSARY IF MAILED IN THE UNITED STATES I POSTAGE WILL BE PAID BY: ENCYCLOPAEDIA BRITANNICA 425 NORTH MICHIGAN AVENUE CHICAGO, ILLINOIS 60611 If card has been detached, write to: ENCYCLOPAEDIA MUTANNICA N. MICHIGAN AVE., CHICAGO, ILUNOIS 60611 DEPT. 101-- 425 NO. 16850 CHICAGO, ILL. is respected ENCYCLOPAEDIA BRITANNICA o o |