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The Mentor: Uncle Sam, Vol. 7, Num. 11, Serial No. 183, July 15, 1919
Albert Bushnell Hart
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The Mentor: The Conquest of the Poles, Serial No. 37
Robert E. Peary
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The Mentor: Napoleon Bonaparte, Serial No. 38
Ida M. Tarbell
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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: Benjamin Franklin, Vol. 6, Num. 7, Serial No. 155, May 15, 1918
Albert Bushnell Hart
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The Mentor: Great American Inventors, Vol. 1, Num. 29, Serial No. 29
H. Addington Bruce
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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: The Cradle of Liberty, Vol. 6, Num. 10, Serial No. 158, July 1, 1918
Albert Bushnell Hart
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The Mentor: Shakespeare's Country, Vol. 4, Num. 8, Serial No. 108, June 1, 1916
William Winter
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The Mentor: Beautiful Buildings of the World, Serial no. 33
Clarence Ward
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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: Butterflies, Vol. 3, Num. 12, Serial No. 88, August 2, 1915
W. J. Holland
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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: Makers of American Art, Vol. 1, Num. 45, Serial No. 45
J. Thompson Willing
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The Mentor: Among the Ruins of Rome, Vol. 1, Num. 46, Serial No. 46
George Willis Botsford
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The Mentor: Joan of Arc, v. 3, Num. 22, Serial No. 98, January 1, 1916
Ida M. Tarbell
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The Mentor: Famous Composers, Vol. 1, Num. 41, Serial No. 41
Henry T. Finck
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The Mentor: The Wife in Art, Vol. 1, Num. 28, Serial No. 28
Gustav Kobbé
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The Mentor: Two Early German Painters, Dürer and Holbein, Vol. 1, Num. 48, Serial No. 48
Frank Jewett Mather
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The Mentor: American Pioneer Prose Writers,
Hamilton Wright Mabie
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The Mentor: Famous English Poets, Vol. 1, Num. 44, Serial No. 44
Hamilton Wright Mabie
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The Mentor: Historic Spots of America, Vol. 1, Num. 32, Serial No. 32
Robert McNutt McElroy
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The Mentor: American Naturalists, Vol. 7, Num. 9, Serial No. 181, June 15, 1919
Ernest Ingersoll
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The Mentor: Spain and Gibraltar, Vol. 1, Num. 31, Serial No. 31, September 15, 1913
Dwight L. Elmendorf
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The Mentor: The Mediterranean, Vol. 1, Num. 39, Serial No. 39, November 10, 1913
Dwight L. Elmendorf
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