CRANIAL • DICTIONARY ONE.COM • Definition of Cranial

... they came; how, whither, and when they vanished,—these are questions before which science stands harassed, impotent to answer positively. There are those who, marking certain apparent resemblances between the implements, religious rites and customs, and cranial formations, of the Mound-Builders, and those of the Asiatic Mongols, conclude that the former were originally Asiatic hordes, who, crossing Behring Straits, when, perhaps, the two continents were united at that point, formed ...

— The Nation in a Nutshell • George Makepeace Towle