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The Mentor: Russian Music, Vol. 4, Num. 18, Serial No. 118, November 1, 1916
Henry T. Finck
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The Mentor: The Yosemite Valley, Vol 4, Num. 16, Serial No. 116, October 2, 1916
Dwight L. Elmendorf
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The Mentor: The Incas, vol. 6, num. 3, Serial No. 151, March 15, 1918
Osgood Hardy
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The Mentor: Rembrandt, Vol. 4, Num. 20, Serial No. 120, December 1, 1916
John C. Van Dyke
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The Mentor: The Story of Coal, vol. 6, Num. 6, Serial No. 154, May 1, 1918
Charles Fitzhugh Talman
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The Mentor: The Metropolitan Museum of Art, Vol. 6, Num. 9, Serial No. 157, June 15, 1918
Sydney P. Noe
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The Mentor: The Revolution, Vol. 1, Num. 43, Serial No. 43
Albert Bushnell Hart
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The Mentor: The Contest for North America, Vol. 1, No. 35, Serial No. 35
Albert Bushnell Hart
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The Mentor: Painters of Western Life, Vol 3, Num. 9, Serial No. 85, June 15, 1915
Arthur Hoeber
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