Letters to viceroy concerning public works. Ff.176-181 concern need to build new Calzada nearer to point of Tolotlan to replace old one that was impassable for carriages. Ff.182-185 concern need for repair considerable deterioration on Punto de Animas. Ff. 186-188 concern need for restoration on archbishop's Palace in Tacubaya, specifically water supply (some question of purity). F.189 concerns scarcity of water in Huamantla. Ff. 190-194 concern toll on vehicles traveling through Cuebas (list of costs for various types of carriages) to fund work on road. Ff.195-203 concern annual cleaning of aqueduct at Chalco; capital invested by various duenos to fund public works, interest rates. (A. Dean, September 1989)