The publication of Volume 16 of this distinguished series brings to a close one of the largest research and documentation projects ever undertaken on the Middle American Indians. Since the publication of Volume 1 in 1964, the Handbook of Middle American Indians has provided the most complete information on every aspect of indigenous culture, including natural environment, archaeology, linguistics, social anthropology, physical anthropology, ethnology, and ethnohistory. Culminating this massive project is Volume 16, divided into two parts. Part I, Sources Cited, by Margaret A. L. Harrison, is a listing in alphabetical order of all the bibliographical entries cited in Volumes 1-11. (Volumes 12-15, comprising the Guide to Ethnohistorical Sources, have not been included, because they stand apart in subject matter and contain or constitute independent bibliographical material.) Part II, Location of Artifacts Illustrated, by Marjorie S. Zengel, details the location (at the time of original publication) of the owner of each pre-Columbian American artifact illustrated in Volumes 1-11 of the Handbook, as well as the size and the catalog, accession, and/or inventory number that the owner assigns to the object. The two parts of Volume 16 provide a convenient and useful reference to material found in the earlier volumes. 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.