BOLIVIA, THE CENTRAL HIGHWAY OF SOUTH AMERICA _By M. R. Wright_ BOLIVIA _By P. Walle_ PLATEAU PEOPLES OF SOUTH AMERICA _By A. A. Adams_ ACROSS THE ANDES _By C. J. Post_ THE SOUTH AMERICANS _By W. H. Koebel_ A SEARCH FOR THE APEX OF AMERICA _By Annie S. Peck_ THE SOUTH AMERICAN TOUR _By Annie S. Peck_ SOUTH AMERICA _By James Bryce_ THE BOLIVIAN ANDES _By Sir Martin Conway_ ⁂ Information concerning the above books may be had on application to the Editor of The Mentor. _THE OPEN LETTER_ Let me tell you about our daily mail. We get letters of appreciation and letters of suggestion--hundreds of both kinds. Many of them are addressed to the “Editor of The Mentor,” others to “Dear Mr. Editor”--and some to “Mr. Moffat.” I like the last form best, for I know that when a member of The Mentor Association writes in a personal way, with a message of encouragement or a valuable suggestion, The Mentor has found a real friend. I like to see the spirit of personal interest growing in our daily mail. It is the best assurance of the vitality of The Mentor Idea that we could have. Fellowship spirit is the soul of all mutual endeavor. * * * * * It is pleasing to see how close an interest some of our members take in the details of The Mentor work. The following letter came to me a day or so ago--and it is too good to keep to myself. “_My dear Mr. Moffat_: When I opened the Hawaiian number of The Mentor, I was delighted to find a greeting from you on the inside of the front cover page. Now that you have moved over there, why don’t you stay? Of course, I don’t know anything about the workings of an editorial office, and it may mean a furious amount of trouble. You might have to move your desk and your whole staff, and even have to get out a new copyright, but from an outsider’s point of view the move looks easy. And to my way of thinking the front of the magazine is the place for you anyway--if you will permit me to say so. There you seem to stand as a host at the threshold, offering a welcome to guests before they enter.” _SYLVIA._ * * * * *