La judía
In 1904, Ferguson provided pre-opera lectures for Charles Manners' (1857–1938) Moody-Manners touring company (the larger) for its performances at Theater Royal, Drury Lane lecturing on Charles Gounod's "Faust" and Fromental Halévy's "La Juive," and Richard Wagner's "Tristan und Isolde" and "Lohengrin".