In addition to extended studies of orchestral scores themselves, the standard works of Berlioz, Gevaërt, Riemann, Parry, and others have, as a matter of course, been referred to.

The subject under discussion has already been admirably handled by Lavoix in his voluminous work entitled "Histoire de L'Instrumentation," but it was unquestionably done through French glasses, and the scores of not one German romanticist are submitted to careful analysis beyond those of Weber and Wagner. "Parsifal"...