Here are the first results of the CEIMES project: the catalogues of manuals from the High Schools Cardenal Cisneros and Isabel la Católica, up to 1936, available at this website: http://servidormanes.uned.es/manes/centros/. There are links at the bibliographical records for those books that have been digitized at the The Virtual Library of Spanish Bibliographical Heritage (Ministry of Culture).