MacCurdy, G. G. American Anthropologist, vol. 7, pp. 425 ff. 1905.

Fire and Fire-Places.

Catlin. North American Indians, p. 82. 1841.

Robinson, C. H. “The First Fire-Place.”

Richey, W. E. Early Spanish Explorations and Indian Implements, p. 9.

Hough, W. American Anthropologist, 1890, pp. 359 ff. 1890.

Mills, W. C. Records of the Past, 1903, p. 351. 1903.

Sheldon, A. E. American Anthropologist, vol. 7, n. s., p. 46. South Dakota. 1905.

Fewkes, J. W. American Anthropologist, vol. 10, n. s., p. 390. Southwestern Kivas. 1908.

Fish-Hooks.