It were idle even to guess how great this must be, but it is possible to set limits to it in both directions.
On the one hand, not a tittle of evidence is on record to carry the age of man in America beyond the present geological epoch.

Dr.Lund examined in Brazil more than eight hundred caverns, out of which number only six contained human bones, and of these six only one had with the human bones those of animals now extinct.

Even in that instance the original stratification had been disturbed, and probably the bones had been interred there.[35-1] This is strong negative evidence.

So in every other example where an unbiased and competent geologist has made the examination, the alleged discoveries of human remains in the older strata have proved erroneous.
The cranial forms of the American aborigines have by some been supposed to present anomalies distinguishing their race from all others, and even its chief families from one another.

This, too, falls to the ground before a rigid analysis.