““It seems certain that in the early dynastic period two races lived in Egypt, which differed considerably in type, and also, apparently, in burial customs ... the supersession of the burial customs of the indigenous Neolithic race by those of another race which conquered and dominated the indigenes. And, since the extended burials of the IVth Dynasty are evidently those of the higher nobles, while the contracted ones are those of inferior people, it is probable that the customs of extended burial and embalming were introduced by a foreign race which founded the Egyptian monarchical state, with its hierarchy of nobles and officials, and in fact started Egyptian civilization on its way.””