Numerous studies have been conducted about the comparative weight of white and black brains with results that fell within the range of about an 8-12 percent lower weight for the white brain. Such studies have been conducted by Bean, Pearl, Vint, Tilney, Gordon, Todd, and others. In addition to the difference in brain weight, the white brain grows less after puberty than the black. And although the white brain and nervous system mature faster than the black brain, its development is arrested at an earlier age which limits further intellectual advancement...