PREFACE.
The following work substantially formed the Fifth Part of the original manuscript of "Ancient Society," under the title "Growth of the Idea of House Architecture." As the manuscript exceeded the limits of a single volume, this portion (Part V) was removed; and having then no intention to publish it separately, the greater part of it found its way into print in detached articles. A summary was given to Johnson's New Universal Cyclopedia in the article on the "Architecture of the American Aborigines." The chapter on the "Houses of the Aztecs" formed the basis of the article entitled "Montezuma's Dinner," published in the North American Review, in April, 1876. Another chapter, that on the "Houses of the Mound Builders," was published in the same Review in July, 1876. Finally, the present year, at the request of the executive committee of the "Archæological Institute of America," at Cambridge, I prepared from the same materials an article entitled "A Study of the Houses and House Life of the Indian Tribes," with a scheme for the exploration of the ruins in New Mexico, Arizona, the San Juan region, Yucatan, and Central America.
With some additions and reductions the facts are now presented in their original form; and as they will now have a wider distribution than the articles named have had, they will be new to most of my readers. The facts and suggestions made will also have the advantage of being presented in their proper connection. Thus additional strength is given to the argument as a whole. All the forms of this architecture sprang from a common mind, and exhibit, as a consequence, different stages of development of the same conceptions, operating upon similar necessities. They also represent these several conditions of Indian life with reasonable completeness. Their
