For proofs that the dynasties given were consecutive and not contemporeaneous, as was once so fondly argued by those who tried to save Archbishop Usher's chronology, see Mariette; also Sayce's Herodotus, appendix, p.

316.
For the various race types given on early monuments, see the coloured engravings in Lepsius, Denkmaler; also Prisse d'Avennes, and the frontpiece in the English edition of Brugsch; see also statement regarding the same subject in Tylor, Anthropology, chap.i.

For the fulness of development of Egyptian civilization in the earliest dynasties, see Rawlinson's Egypt, London, 1881, chap.

xiii; also Brugsch and other works cited.

For the perfection of Egyptian engineering, I rely not merely upon my own observation, but on what is far more important, the testimony of my friend the Hon.