Whether this cataclysm was contemporaneous throughout, or by successive throes must be ascertained by Geogony....
"The American Nations, Vol. I."
C. S. Rafinesque
These 6 yums or great periods do not answer exactly to the 6 yums or manifestations of the mosaic cosmogony, since Geogony begins only with the 3d, ending with the 5th.
"The American Nations, Vol. I."
C. S. Rafinesque