The Mexican literary periodicals of the nineteenth century may be roughly divided into two main classes: the purely literary and the semi-literary. To the second and more numerous group belong such periodicals as those intended primarily for women or certain social classes, and those which had for their purpose the vulgarization of useful knowledge or the dissemination of political propaganda. Of the political, the writer has disposed as follows: those of little or no literary value have been disregarded; those presenting only a few poems of intrinsic worth are mentioned cursorily in the text but not included in the ensuing bibliography; while those in which satiric and political verse is predominant are listed with details at the end of the main bibliography. Much valuable literary material is buried in the daily newspapers, only the most important of which can be considered here, even briefly. The weekly literary editions or supplements of the larger dailies, generally issued separately with volume and issue numbers of their own, are included, for their contribution is of distinct value.