PART I. DESCRIPTIVE
CHAPTER I
CLASSIFICATION AND GEOGRAPHICAL DISTRIBUTION OF MANÓBOS
AND OTHER PEOPLES IN EASTERN MINDANÁO
EXPLANATION OF TERMS
"EASTERN MINDANÁO"
Throughout this monograph I have used the term "eastern Mindanáo" to include that part of Mindanáo that is east of the central Cordillera as far south as the headwaters of the River Libagánon, east of the River Tágum and its influent the Libagánon, and east of the gulf of Davao.
THE TERM "TRIBE"
The word "tribe" is used in the sense in which Dean C. Worcester defines and uses it in his article on The non-Christian Tribes of Northern Luzon:1