Volume 13 of the Handbook of Middle American Indians, published in cooperation with the Middle American Research Institute of Tulane University under the general editorship of Robert Wauchope (1909-1979), constitutes Part 2 of the Guide to Ethnohistorical Sources. The Guide has been assembled under the volume editorship of the late Howard F. Cline, Director of the Hispanic Foundation in the Library of Congress, with Charles Gibson, John B. Glass, and H. B. Nicholson as associate volume editors. It covers geography and ethnogeography (Volume 12); sources in the European tradition (Volume 13); and sources in the native tradition (Volumes 14 and 15). The present volume contains the following studies on sources in the European tradition: Published Collections of Documents Relating to Middle American Ethnohistory, by Charles Gibson An Introductory Survey of Secular Writings in the European Tradition on Colonial Middle America, 1503-1818, by J. Benedict Warren Religious Chroniclers and Historians: A Summary with Annotated Bibliography, by Ernest J. Burrus, S.J. Bernardino de Sahagun, by Luis Nicolau d'Olwer, Howard F. Cline, and H. B. Nicholson Antonio de Herrera, by Manuel Ballesteros Gaibrois Juan de Torquemada, by Jose Alcina Franch Francisco Javier Clavigero, by Charles E. Ronan, S.J. Charles Etienne Brasseur de Bourbourg, by Carroll Edward Mace Hubert Howe Bancroft, by Howard F. Cline Eduard Georg Seler, by H. B. Nicholson Selected Nineteenth-Century Mexican Writers on Ethnohistory, by Howard F. Cline The Handbook of Middle American Indians was assembled and edited at the Middle American Research Institute of Tulane University with the assistance of grants from the National Science Foundation and under the sponsorship of the National Research Council Committee on Latin American Anthropology.