The difficulties that encumbered the path of the compiler of this book, dealing with the women of the musical stage in this country, were numerous. First among them was the choice of subjects. The selection could not be made with deference to any classification by merit, for the triumphs of personality were not amenable to such a classification. The compiler was compelled by the conditions to bring his own personality into the case, and to choose entirely by preference. He could not be governed by an arbitrary standard of comparison; for how can personality, which is a quality, an impression, hardly a fact, and certainly not a method, be compared? In the present instance, the writer found it expedient to limit himself to those entertainers who have given at least some evidence of continued prominence. It may be, therefore, that a few names have been omitted which are rightly entitled to a place in a work of this kind. Nevertheless, the list is surely representative, even if it be not complete. After the subjects had been chosen, the question, how to treat them, at once became paramount. Again the bothersome limitations of personality asserted themselves; and one perceived immediately that criticism, meaning by that the consistent application of any comprehensive canon of dramatic art, was out of the question. The vocal art of the average light opera singer is imperfect, and the histrionic methods in vogue show little evidence of careful training: they are neither subtle nor complex. Indeed, the average woman in light opera is not an actress at all in the full meaning of the word. She does not fit herself into the parts that she is called upon to play, and she does not attempt expositions of character that will stand even the most superficial analysis. She acts herself under every circumstance. Describe in detail her work in a single role, and she is written down for all time. Yet, should one limit his critical vision to a single part, he not only fails to touch the main point at issue, but he runs the risk, as well, of self-deception and misunderstanding. The artistic worth of a player of personality is invariably overestimated after the first hearing; and the sure tendency of even the experienced observer, particularly if he be of sympathetic and sanguine temperament, and constantly on the watch for the slightest indication of unusual talent, is to mistake personality for art. The result is that, after indulging himself to the full in eloquent rhapsody, he encounters, upon a more intimate acquaintance, mortifying disillusionment.