This represents a most interesting but not genuinely historical criticism of some of the earlier volumes of recent Bolivian history by Porfirio Díaz Machicao, all of which have been reviewed in the HAHR. Ovidio Urioste, a facile writer who claims to be a historian but who has not written any true research monograph, accuses Díaz Machicao of lacking qualifications to write history. He says that Díaz Machicao is a journalist, which indeed he is, and that his histories are journalism, which indeed they are. The Urioste refutation is wordy and lacks clarity yet a careful and repeated reading will reveal clear thinking. This essay is a necessary appendix to the Díaz Machicao volumes, and it should be consulted when these volumes are used.