Students of late colonial and early modern Mexico will find this a well-edited monograph of particular value. The G. R. G. Conway Collection consists of over 1200 printed documents acquired by the Institute of Historical Research, University of London in 1936. The collection begins with a small selection of viceregal documents but its main strength lies in the rich variety of materials on the independence struggles, the first Federal Republic and the complex political events of the period up to 1843.

The bulk of the documents is made up of presidential and congressional decrees which were issued and circulated by federal ministers to the appropriate government departments and authorities throughout Mexico. Although a number of well-known political plans, pronunciamientos and diplomatic treaties are included, the great value of the collection is in the wealth of detailed information it provides on the fiscal and economic legislation of the different post-independence governments. Students of the economic and bureaucratic history of the period will be interested to note that many of the documents listed by Michael Costeloe in this catalogue are accompanied by the administrative instructions of the ministers responsible for their implementation.