George Gaylord Simpson (1902-1984), Attending Marvels: A Patagonian Journal
(1934; rpt. New York: Time Incorporated, 1965), p. 260 (brackets in original):
Our first stop was at the Tetas de Pinedo. [Preparing a lecture once in Buenos Aires a refined friend urged me to call them the "Mamelones," that being a more elegant word, but tetas they are to the local people, tetas they are on the official maps, and so tetas they shall be in my work.] These are two large rounded hills, standing near each other and rising above the coastal plain with an appearance, as the name implies, extraordinarily like two gargantuan breasts.