Among the Head-hunters of Formosa

"Among the Head-hunters of Formosa contains the substance of observations made during a two-years' stay in Formosa — from September 1916 to September 1918 ... I venture to hope that such information as the book contains may stimulate interest, and perhaps encourage further investigation, before it is too late, into the tribal customs and habits of a little-known, and rapidly disappearing, people." (from author's Introduction to Among the Head-hunters of Formosa)