It analyzes the literary and journalistic work of ngel de Campo (1868-1908) and the various phonetic, morphosyntactic and lexical records that appear in it both in dialogues and in the different narrative voices in order to see if its vitality continues in the Mexican dialect current or has followed other courses. The analyzed phenomena express the popular and cultured linguistic norms of the Spanish that was spoken in Mexico City at the end of the XIX century and the beginning of the XX, thanks to the record that the author makes especially of the marginalized social classes of the Mexican capital.