Boletín de la Universidad de Madrid. Año I, Números 1 y 2. Enero - Marzo, 1929. Severino Aznar: El promedio diferencial de la reproductividad en las clases sociales de Madrid; Agustín del Saz: Los Reyes Católicos en el teatro; Obdulio Fernández y Francisco Torrens: Las peptonas de uso bacteriológico; Juan Zaragüeta: Psicología y Gramática; Luis Bermejo Vida: El microanálisis; José Casares Gil: El Valle de Méjico y los manantiales de la Cuenca de los Lagos, y otros trabajos.

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