My fellow archaeologists will understand the disadvantage of issuing an investigation partly written a few years previously, and will realize that, had I, at the outset, been in possession of all the facts I have since learned, the present work would have been very differently planned and executed. On the other hand, as it partakes somewhat of the nature of a log-book, the reader is able to follow closely my blundering course, and will recognize and appreciate some of its perils and difficulties. It being, unfortunately, impossible to re-write the book. I shall have to be resigned to incur some criticism and blame for omissions, which could have been averted. I shall, however, be content if my prolonged study of ancient Mexican archaeology and the present research open out new lines of investigation, and conclusively prove that primitive cross-symbols and the swastika are universally accompanied by vestiges of a certain set of cosmical conceptions and schemes of organization, which can be traced back to an original pole-star worship. I can but think that the material I have collected will also lead to a recognition that the rôle of the Phœnicians, as intermediaries of ancient civilization, was greater than has been supposed, and that it is imperative that future research be devoted to a fresh study and examination of those indications which appear to show that America must have been intermittently colonized by the intermediation of Mediterranean seafarers. To me the most interesting result of the present investigation is the fact that, having once started on an unpremeditated course of study, I found an unsuspected wealth of material and finally attained one main, totally undreamed-of conclusion, concerning the law governing the evolution of religion and civilization. This leads me to think that, as I groped in darkness, searching for light, I unwittingly struck the true key-note of that great universal theme which humanity, with a growing perception of existing, universal harmony, has ever been striving to seize and incorporate into their lives. The fact that many of the transcriptions of the original harmony have been and are discordant, and that they temporarily obscure, instead of rendering, its sublime grandeur, unity and noble simplicity, appears as the inevitable result of the mental activity, ingenuity and creative imagination to which mankind also owes its intellectual and spiritual progress. In conclusion I regret my inability to express adequately my grateful appreciation of the unfailing loyalty of those true friends, in particular Prof. F. W. Putnam, who, trusting in the earnestness of my purpose and endeavor, have constantly encouraged and cheered me as they patiently awaited the long-delayed completion of my work. Z. N. CAMBRIDGE, MASS., DECEMBER 31, 1900. THE FUNDAMENTAL PRINCIPLES OF OLD AND NEW WORLD CIVILIZATIONS.