Clark Wissler, The American Indian (1917)
“ The difference between hand and whorl-twisting is merely a matter of machinery. In either case, the native first arranges the roving by hand. The only twisting machine in use for true textile fibers was the whorled or rolled spindle, but there was nothing like the wheel of the Old World. Further, we are told that it is only bast fiber that can be twisted by rolling under the palm upon the thigh. Neither cotton nor wool can be economically handled that way because of Fig. 15. A Navajo Spinner the shortness and other characteristics of the fiber. ”
