Informe del Visitador General al Excmo. Señor Marqués de Croix sobre la inadmisible pretension de libertar del Tributo á los operarios de minas de Goanaxto
In this document, Gálvez expresses concern for the Guanajuato city council's decision to end the tribute system. He explains the danger of such an act, and makes it clear that he does not support it.