From the Prairie Traveler ©1859
The most portable and simple preparation of subsistence that I know of, and which is used extensively by the Mexicans and Indians, is called " cold flour." It is made by parching corn, and pounding it in a mortar to the consistency of coarse meal; a little sugar and cinnamon added makes-it quite palatable. When the traveler becomes hungry or thirsty, a little of the flour is mixed with water and drunk. It is an excellent article for a traveler who desires to go the greatest length of time upon the smallest amount of transportation. It is said that half a bushel is sufficient to subsist a man thirty Persons undergoing severe labor, and driven to great extremities for food, will derive sustenance from various sources that would never occur to them under ordinary circumstances.