Missa Solemnis. New York: J. Fischer, 1923. 35 pp. Inscription: “To my dear friend Charles Skilton, affectionately, Pietro Yon.” Second Concert Study: Three Compositions for Organ. New York: G. Schirmer, 1915. 9 pp. Inscription: “All’Illustre e caro amico Sng. Charles S. Skilton con stina e sincerita.” Sonata Romantica, No. 3. New York: J. Fischer, 1922. 35 pp. Inscription: “To my dear friend and distinguished colleague Dr. Charles S. Skilton with appreciation and devotion.” Tocatta for the Organ. New York: G. Schirmer, 1912. 11 pp. Inscription: “To Mr. Charles S. Skilton with admiration as a teacher, organist, composer, and friend.”