For convenience of comparison we place here our corrected Bible Chronology for the call of Abraham――viz. B. C. 2248; and for the flood, by the longest Septuagint text, B. C. 3425, and by the shortest, B. C. 3325. These dates afford ample time for Mizraim, grandson of Noah, to make a home and found a community in Egypt, in which Menes might presently reach the dignity of being the first king. II. _The date of the Pyramids._ B. C. Bunsen in his latest recension, about 2600 Prof. C. Piazzi Smith, by astronomical calculations 2170 George Rawlinson (in “Aids to Faith,” p. 297) 2400 These dates may be compared with the call of Abraham――B. C. 2248.――――J. P. Thompson (Genesis and Geology, p. 86) says――“The three great pyramids by the common consent of Egyptologers are assigned to the fourth dynasty of kings of the old empire, as given by Manetho.” It will be seen that these dates for Menes, the first king, and for the oldest pyramids are amply provided for within the extension of sacred chronology as above indicated.――――Other points in Egyptian antiquities will be treated of in their place. * * * * * On the general subject of the _antiquity of man_, it only remains to touch briefly the subsidiary questions stated above, p. 49. (a.) _Were there one or more races of primeval men, pre-Adamic, but now extinct?_ So far as reliable facts have yet come to light there is no sufficient evidence of the affirmative. Our investigations into the antiquity of man do not seem to demand a longer time than the extended sacred chronology above presented affords. It is perhaps too soon to say that no evidence will yet appear of a pre-Adamic race not in existence now. But it will be soon enough to recognize the fact when the evidence shall have been adduced. Till then, it is more scientific to believe only so far as we have knowledge based on evidence. (b.) _Have there been various head-centers of existing human species, or only one, and that Adam?_――――Or (the same question in different form) Are all the living varieties of race lineally descended from Adam? and all from Noah?――――These questions contemplate the well known diversities of race in the existing human family. The classification of _race_ is made somewhat variously by different authors; but the more common one makes _five_ classes: The Caucasian, or white; The Mongolian, or yellow; The Ethiopian negro race, or black; The American, or red; and the Malayan, or brown. (See Webster.)