They measure from seventy-five inches to ninety.

Europeans' brains measure from ninety to one hundred inches.

There are instances of Esquimaux measuring over ninety.

Even the brain of an idiot is double the size of that of the orang-otang.

But how did man get this extraordinary development of brain, far beyond his necessities?
For the cave man of Mentone, who hunted the bison, had as good a head as Bismarck.