The second list (1-378) contains references to articles or books on special subjects which I have been obliged to treat very briefly in this small book. These will introduce the reader to other writers on the same subject. He is urged to make his own bibliography, and will find that he has started on an endless chain of most fascinating research, for which I hope he may form an insatiable appetite. The following list of abbreviations and corresponding complete titles may save the reader some inconvenience. In this connection he may well consult the Introduction to Déchelette's _Manuel_ (A) I, pp. xv-xix. _Amer. Nat._ _American Naturalist._ _Amer. Anth._ _American Anthropologist._ _Sci. Mo._ _Science Monthly._ (Continuation of _Popular Science Monthly_.) _A. f. A. (Arch. f. Anth.)_ _Archiv für Anthropologie._ _Zts. f. Eth._ _Zeitschrift für Ethnologie._ _L'Anth._ _L'Anthropologie._ _R. E. A._ _Revue d'école d'Anthropologie_, Paris. _Rev. Arch._ _Revue Archéologique._ _Korr.-bl. d. d. Ges._ _Korrespondenz-blatt der deutschen_ _Gesellschaft für Anthropologie._ _Cong. Int._ _Congrès international d'Anthropologie_ _et d'Archéologie._ GENERAL A. Déchelette, J. _Manuel d'Archéologie Préhistorique._ Paris, 1908. 3 vols. Vol. I. _Archéologie Préhistorique._ B. Hoernes, M. _Natur-und Urgeschichte des Menschen._ Vienna, 1909. 2 vols. C. ---- _Urgeschichte des Menschen_, Vienna, 1892. D. Obermaier, H. _Der Mensch aller Zeiten._ Berlin, 1911-12. Vol. I. _Der Mensch der Vorzeit._ E. Forrer, R. _Urgeschichte des Europäers._ Stuttgart, 1908. F. ---- _Reallexikon der prähistorischen, klassichen und frühchristlichen Alterthümer._ Stuttgart, 1907-08. G. Müller, S. _Nordische Älterthumskunde_ (trans. Jiriczek). Strassburg, 1897. Vol. I. Steinzeit-Bronzezeit. H. ---- _Urgeschichte Europas_ (trans. Jiriczek). Strassburg, 1905. I. ---- _L'Europe préhistorique_ (trans. Philipot). Paris, 1907. J. Montelius, O. _Kulturgeschichte Schwedens._ Leipsic, 1906. K. ---- _Les Temps préhistoriques en Suède_ (trans. Reinach). Paris, 1895. L. Avebury, Lord (Sir John Lubbock). _Prehistoric Times._ New York, 1913. M. Elliot, G. F. S. _Prehistoric Man and His Story._ London, 1915. N. Schwantes, G. _Aus Deutschland's Urzeit._ Leipsic, 1913. O. Wundt, W. _Elements of Folk Psychology_ (trans. Schaub, E. L.). London, 1915. CHAPTER I--THE COMING OF MAN 1. Lull, R. S. _Organic Evolution._ New York, 1917. 2. Wilder, H. H. _History of the Human Body._ New York, 1909.