Since the publication of the still very valuable Biblioteca historica de la filologia by Cipriano Munoz y Manzano, conde de la Vinaza (Madrid, 1893), our knowledge of the history of the study of the Spanish language has grown considerably, and most manuscript and secondary sources had never been tapped before Hans-Josef Niederehe of the University of Trier courageously undertook the task to bring together any available bibliographical information together with much more recent research findings, scattered in libraries, journals and other places. The resulting Bibliografia...