Writer: Cornelis De Witt Willcox

Produced by Jeroen Hellingman and the Distributed Proofreaders Team from scans made available by the University of Michigan. The Head Hunters of Northern Luzon From Ifugao to Kalinga A Ride Through the Mountains of Northern Luzon With an Appendix on the Independence of the Philippines By Cornelis De Witt Willcox, Lieutenant-Colonel U.S. Army, Professor United