Excerpt from The Mexican Guide
I am under great obligations to the Exmo. à Illmo. Sr. Dr. D. Pelagio Antonio de Labastida y Dévalos, Archbishop of Mexico, for assistance in prosecuting my ecclesiastical researches. I em under obligations also to General Carlos Pacheco, Minister of Public Works, for permission to republish the accompanying official maps of the City of-mexico and environs of the City of Mexico; to the late United States Envoy to Mexico, the Hon. Henry R. Jackson, for his very courteously given aid in procuring me this privilege; to Don Guil lermo Prieto, and to the Rev. Father Agustin Fischer, for advice and assistance in obtaining the several works of reference required in preparing the following pages.