Note 713 — Chapter V · NEW MEXICANS.
Reading edition
'Their utensils for the purpose of grinding breadstuff, consist of two stones; one flat, with a concavity in the middle; the other round, fitting partly into the hollow of the flat stone.' Henry, in Schoolcraft's Arch., vol. v., p. 209; Smart, in Smithsonian Rept., 1867, p. 418; Velasco, Noticias de Sonora, p. 282.