Burton 1865, pg 208, "the “Nayin” or cross-bow peculiar to this people, and probably a native invention, not borrowed, as might be supposed, from Europe, is carried only when hunting or fighting : a specimen was exhibited in London with the gorillas. The people are said sometimes to bend it with the foot or feet like the Tupi Guaranis, the Jivaros, and other South Americans. Suffice it to remark of this weapon, with which, by the by, I never saw a decent shot made, that the detente is simple and ingenious, and that the “ Ebe” or dwarf bolt is always poisoned with the boiled root of a wild shrub. It is believed that a graze is fatal, and that the death is exceedingly painful : I doubt both assertions."