"These works criticized the government in those troublous times and the author did not care to publish them at home. It has been charged that vol. II was so offensive to Santa Anna that it was bought up and suppressed by him. This is untrue; the author distinctly states in a preface [Advertencia al 3. periodo, t. IV, p. vii] that he has postponed publishing it until he has obtained some further data that he expects, but that its omission does not affect the course of the narrative. He died, however, before his plans were realized."--Blake's Catalogue.
The maps (20 in all) which originally were to accompany each volume, and to be issued later in a separate volume, have never been published. cf. Advertencia, t. IV, p, vii.