The object of The Mentor Association is to enable people to acquire useful knowledge without effort, so that they may come easily and agreeably to know the world's great men and women, the great achievements and the permanently interesting things in art, literature, science, history, nature, and travel. The purpose of the Association is carried out by means of simple readable text and beautiful illustrations in The Mentor. The annual subscription is Three Dollars, covering The Mentor Course, which comprises twenty-four numbers of The Mentor in one year. THE MENTOR IS PUBLISHED TWICE A MONTH BY THE MENTOR ASSOCIATION, INC., AT 52 EAST NINETEENTH STREET, NEW YORK, N. Y. SUBSCRIPTION, THREE DOLLARS A YEAR. FOREIGN POSTAGE 75 CENTS EXTRA. CANADIAN POSTAGE 50 CENTS EXTRA. SINGLE COPIES FIFTEEN CENTS. PRESIDENT, THOMAS H. BECK; VICE-PRESIDENT, WALTER P. TEN EYCK; SECRETARY, W. D. MOFFAT; TREASURER, ROBERT M. DONALDSON; ASST. TREASURER AND ASST. SECRETARY, J. S. CAMPBELL THE MENTOR ASSOCIATION, INC. 52 EAST 19th STREET, NEW YORK N. Y. THE MENTOR The Mentor Index An index to The Mentor has been prepared, and is now ready. Every number of The Mentor, from Serial No. 1 through 106, has been indexed. It is a complete, concise, and accurate grouping of all the subjects treated in The Mentor, under three headings--the gravure pictures, the monographs, and The Mentor articles. Every subject is carefully indexed so that the information desired may be quickly and easily found. Every member of The Mentor Association should own this index, and every member will want to own it, particularly if his or her file of back numbers is complete. The index is the same size as The Mentor and similar in style, so that it may be bound in with the numbers of The Mentor themselves. The price is twenty-five cents a copy. It would be advisable to place your order at once, as the first edition is limited. _Send all orders to_ THE MENTOR ASSOCIATION 52 EAST NINETEENTH STREET NEW YORK, N. Y. MAKE THE SPARE MOMENT COUNT CONTRIBUTORS TO THE MENTOR These are the men and women who make The Mentor--all of them eminent authorities in their special fields of knowledge. JOHN C. VAN DYKE, Professor of the History of Art, Rutgers College, and Author of many books. HAMILTON W. MABIE, Editor of The Outlook, and Author and Literary Critic. DWIGHT L. ELMENDORF, Traveler and Lecturer. ALBERT BUSHNELL HART, Professor of Government, Harvard University. DR. WILLIAM T. HORNADAY, Director of the New York Zoological Park, and Author of many nature books. ROBERT E. PEARY, Discoverer of the North Pole. PROF. CHARLES E. FAY, Tufts College, and First President of the American Alpine Club. WILLIAM WINTER, celebrated Critic and Author. JAMES HUNEKER, Author and Critic. GUSTAV KOBBÉ, Art Critic of the New York Herald, and Author of many books.