National Geographic : 1923 Sep
WOa IiT IN' CUMULATIVE rv INWSI U J LOOSE-LEAF UN YCLOP[l k EVERY VOLUME A LOOSE-LEAF BOOK Kept Constantly Up-to-Date REVOLUTIONIZES ENCYCLOPEDIA MAKING The day of the old-fashioned encyclopedia is past. A reference work to be authoritative must be kept constantly up-to-date. The simple, invisible, loose-leaf system (Patented in the United States and Canada) used in Winston's Cumulative Loose-Leaf Encyclo pedia makes it possible to add all new and important information to the work without changing the size or form of the volumes. No outside metal parts-no rings, springs or hinges to get out of order-every page bound stronger than in a sewed book. EDITOR-IN-CHIEF THOMAS E. FINEGAN, M.A., LL.D., Litt.D. FORMERLY SUPERINTENDENT PUBLIC INSTRUCTION. STATE OF PENNA. Complete in Every Department of Knowledge. An able corps of associate editors, each an expert in his own department of knowledge, is constantly engaged in recording the Progress of the World. The work contains articles on a great many subjects not found in other encyclopedias, and is planned to include the material facts on all subjects covering the whole range of human knowledge. There are 5000 pages, 40,000 subjects, 3000 illustrations, color plates and maps-giving what everyone wants to know on every encyclopedic topic. It is the most up-to-date, authoritative and comprehensive encyclopedia published. APPROVED AND ADOPTED BY BOARDS OF EDUCATION Authorized by the State Departments of Education for use in the schools in New York, Ohio, Texas and other States, and by the Boards of Education in many cities and towns throughout the country, including Philadelphia, Boston and Chicago, the work has received the highest commendation of educators, as well as business and professional people everywhere. AHANDSOME NECESSITY TF HOME LIBRARY The Encyclopedia is richly bound in FULL MAROON LEATHER, with gilt tops and full gold stamping on back FREE-"Knowledge is Power"-FREE on receipt of coupon this book, full of interesting information and illustrated will be MAILED to you, and you will also receive full particulars of this new idea in encyclopedia building-Win ston s CUMULATIVE LOOSE-LEAF Encyclopedia, a low-priced comprehensive reference work that constantly remains just as new and up-to-date as the day you buy it. THE JOHN C. WINSTON Co., Winston Bldg., Phil AIL COUPON TODAY ithout any obligation on my part, send free MAL "KNOWLEDGE IS POWER" and particulars THE JOHN C. WINSTON COMPANY LO LEAI lan on WNSTON'S CUMU LARGEST AMERICAN BOOK AND BIBLE PUBLISHERS WINSTON BUILDING PHILADELPHIA Name........................................ adelphia by mail of your NATIVE B-9) Address ................. ............................