These curious, conical-shaped, outdoor ovens used in the Southwest by the Indians and many of the Mexicans were probably borrowed from the Spaniards. They are built of brush, plastered over inside and out with thick coatings of adobe mud, and last, with constant repairs made on them, almost indefinitely. They are built outdoors for several reasons, the main one being to do away with the heat resulting during the warm weather. The Pueblo Indians of New Mexico are a very conservative people. They are absolutely self-supporting, and are citizens of the United States.