Series of concise letters between Nava and viceroys conde de Revilla Gigedo and marques de Branciforte covering appointment of Fernandez Cosio as Ensayador de Caxas de Rosario; collection of Alcavala, gunpowder, tobacco, and playing card taxes in Arispe; reassignment of several Lower level administrative personnel; petition by Portillo for position in Caxas de Guadalaxara (includes resume of previous employment);criteria for awarding military retirement benefits; and welcoming of Branciforte as new viceroy. Documents devoid of specific detail, many merely acknowledging receipt of previous letters. (A. Tukey, August 1988)