How Music Developed, by W. J. Henderson.  New York, Frederick
  A. Stokes Co.

  Wagner and His Works, by Henry T. Finck.  New York, Charles
  Scribner’s Sons.

  By the Way, by William F. Apthorp.  Boston, Copeland & Day.

  A Study of Wagner, by Ernest Newman.  New York, G. P. Putnam’s
  Sons.

  Folk-Music Studies, by H. E. Krehbiel.  New York Tribune,
  August, 1899.

  Analytical Notes to Schlesinger Edition, by Theodor Kullak.

  The New Spirit, by Havelock Ellis.  London, Walter Scott, Ltd.

  Flaubert, par Emile Faguet.  Paris, Hachette et Cie.

  Reisebilder, by Heinrich Heine.

  Affirmations, by Havelock Ellis.  London, Walter Scott.

  The Psychology of the Emotions, by Th.  Ribot.  New York,
  Charles Scribner’s Sons.

  The Man of Genius, by Cesare Lombroso.  New York, Charles
  Scribner’s Sons.

  The Musical Courier, New York.  Files from 1889 to 1900.

  Chopin’s Works, by Rutland Boughton, in London Musical
  Standard.

  Chopin, by Stanislas Count Tarnowski.  Translated from the
  Polish by Natalie Janotha. 1899.

  The School of Giorgione, An Essay by Walter Pater.

  Chopin and the Sick Men, by John F. Runciman, in London
  Saturday Review, September 9, 1899.

  Frederick Chopin, by Edward Dannreuther from Famous Composers
  and their Works.  Boston, J. B. Millet Company.

  Primitive Music, by Wallaschek.

  Zur Psychologie des Individuums, Chopin und Nietzsche, by
  Stanislaw Przybyszewski.  Berlin, W. Fontaine & Co., 1892.

  Musical Interpretation, by Adolph Carpe.  Leipzig, London and
  Paris, Bosworth & Co., Boston, B. F. Wood Music Co.

  Pianistes Celebres, par Francois Marmontel.

  Frederyka Chopina, in Echo Musicale, Warsaw, Poland, October
  15, 1899.

  OEuvres Poetiques Completes de Adam Mickiewicz, Traduction du
  Polonais par Christien Ostrowski.  Paris, Firmin Didot Freres,
  Fils et Cie, 1859.

  The World as Will and Idea, by Arthur Schopenhauer.

  The Case of Richard Wagner, by Friedrich Nietzsche.  New York,
  Macmillan Co.

  With the Immortals, by Marion Crawford.  References to Chopin.

  Preface to Isidor Philipp’s Exercises Quotidiens tires des
  OEuvres de Chopin, by Georges Mathias.  Paris, J. Hamelle.

  Pianoforte Study, by Alexander McArthur.

  Chopin Ein Gedenkblatt, by August Spanuth, New York Staats-
  Zeitung, October 15, 1899.

  The Pianoforte Sonata, by J. B. Shedlock, London, Methuen &
  Co.

  A History of Pianoforte Playing and Pianoforte Literature, by
  C. F. Weitzmann, translated by Dr. Th.  Baker.  New York, G.
  Schirmer.

  Der Letze Virtuoso, by C. F. Weitzmann.  Leipzig, Kahnt.