Este libro es una instruccion para los administradores de aduanas en la Nueva España sobre la legitimidad de adeudos de alcabalas y pulques. La obra es un documento valioso para el estudio de la economia y el comercio en la epoca colonial de Mexico, y ofrece una vision detallada de las normas y procedimientos que regian el comercio de la epoca. Este libro es una obra imprescindible para aquellos interesados en la historia economica y comercial de Mexico.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.