He was appointed professor of Folklore at the Free Institution of Education in Madrid and participated actively in the Monthly Magazine of Philosophy, Literature and Sciences (1869-1874), with his first works on popular literature.
Foi nomeado catedrático de Folclore na Institución Libre de Enseñanza (Madrid) e participou activamente na Revista Mensual de Filosofía, Literatura y Ciencias (1869-1874) cos seus primeiros traballos sobre literatura popular.