1901. The text of the play is in Spanish. With introduction and notes by J. Geddes and Freeman M. Josselyn. From the Introduction: The remarkable career of Jose Echegaray in science, politics and letters during the latter half of the nineteenth century has attracted the attention of students in each of these departments of human activity. Indeed, the results of Echegaray has accomplished in any one of these branches entitle him to a distinguished position. To the student of letters, this fact is the more interesting in that Echegaray's pronounced natural aptitude is for science and mathematics. The factors that have contributed largely to his success in the drama are unusual intellect, combined with imagination and will power to work and to preserve. O Locura O Santidad is one of his most celebrated plays.