1911 Encyclopædia Britannica, Volume 24… (1911)
“ The collection of sarsaparilla root is a very tedious business; a single root takes an Indian half a day or sometimes even a day and a half to unearth. The roots extend horizontally in the ground on all sides for about 9 ft., and from these the earth has to be carefully scraped away and other roots cut through where such come across them. A plant four years old will yield 16 ℔ of fresh root, and a well-grown one from 32 to 64 ℔, but more than half the weight is lost in drying. ”
