wind-and-silex

Updated: May 18, 2025

After some protracted examination and study of many of the most interesting architectural and sculpturesque structures of the Rocky-Mountain system, I am convinced that they are mainly explicable on the hypothesis of the wind-and-silex instrument operating upon material in the earthy condition, which petrified after receiving its form.

Various - The Atlantic Monthly, Volume 13, No. 78, April, 1864