Before closing this bibliographic sketch with a glance at the earliest literature of the nineteenth century, I must mention two ponderous books of the eighteenth century which, while based on second-hand information and not very valuable in detail, refer occasionally to facts and data not elsewhere found. These are the two volumes of the _Cronica Apostolica y Serafica de la Propaganda Fide de Queretaro_. The first volume, written by Fray Isidro Felis Espinosa and published in 1746, is interesting especially on account of its reference to the fate of the first Frenchmen brought into New Mexico, and one of whom, Juan de Archibeque, played an important role in the first two decades of the eighteenth century. The second volume, the author of which was Fray Domingo de Arricivita, was published in 1792, and is the chief source concerning the still problematical expedition to the north attributed to two Franciscan friars in 1538. Both of these works are of relatively minor importance, and I mention them here only for the sake of completeness and in order to warn against attaching undue importance to them so far as the Pueblos are concerned. It is of course understood that I omit from the above account a number of publications containing more or less brief and casual references to New Mexico. Most of them are geographical, and but few allude to historical facts. In the notes to the Documentary History proper I may refer to some of them. Perhaps the last book published on New Mexico in the Spanish language is the little book of Pino, which, however, has little more than a bibliographic value except in so far as it touches the condition of New Mexico at the beginning of the nineteenth century. The documents in the New Mexican and Mexican archives up to the date of the American occupancy present features similar to those that characterize the Spanish documents of the eighteenth century. It would be too tedious to refer to them in detail, and I therefore dismiss them for the present with this brief mention. If I do not mention here the literature on New Mexico in the English language it is not due to carelessness or to ignorance of it, but because of its much greater wealth in number and contents, its more ready accessibility, and because in matters respecting the history of early times the authors of these works have all been obliged to glean their information from at least some of the sources that I have above enumerated and discussed.