erally called "Igorrotes." Ilokos Sur
has nearly 8,000, half of whom are known to history as "Tinguianes"
and half as "Igorrotes." The Province of Ilokos Norte has nearly
9,000, which number is divided quite evenly between "Igorrotes,"
"Tinguianes," and "Infieles." Abra Province has in round numbers 13,500
pagan Malayans, most of whom are historically known as "Alzados" and
"Tinguianes." These Tinguian ethnically belong to the great Igorot
group, and in northern Bontoc Province, where they are known as Itneg,
flow into and are not distinguishable from the Igorot; but no effort is
made in this monograph to cut the Tinguian asunder from the position
they have gained in historic and ethnologic writings as a separate
people. The Province of Lepanto-Bontoc has, according to records,
about 70,500 "Igorrotes," "Tinguianes," and "Caylingas," but I believe
a more careful census will show it has nearer 100,000. Nueva Ecija is
reported to have half a hundred "Tinguianes." The Province of Nueva
Vizcaya has some 46,000 people locally and historically known as
"Bunnayans," a large group in the Spanish comandancia of Quiangan;
the "Silapanes," also a large group of people closely associated with
the Bunayan; the Isinay, a small group in the southern part of the
province; the Alamit, a considerable group of Silipan people dwelling
along the Alamit River in the comandancia of Quiangan; and the small
Ayangan group of the Bunayan people of Quiangan. Cagayan Province has
about 11,000 "Caylingas" and "Ipuyaos." Isabela Province is reported
as having about 2,700 primitive Malayans of the Igorot group; they
are historically known as "Igorrotes," "Gaddanes," "Calingas," and
"Ifugaos."

The following forms of the above names of different dialect groups of
Ig-o-rot' have been adopted by The Ethnological Survey: Tin-gui-an',
Ka-lin'-ga, Bun-a-yan', I-sa-nay', A-la'-mit, Sil-i-pan', Ay-an'-gan,
I-pu-kao', and Gad-an'.

It is believed that all the mountain people of the northern half
of Luzon, except the Negritos, came to the island in some of the
earliest of the movements that swept the coasts of the Archipelago
from the south and spread over the inland areas -- succeeding waves
of people, having more culture, driving their cruder blood fellows
farther inland. Though originally of one blood, and though they
are all to-day in a similar broad culture-grade -- that is, all are
mountain agriculturists, and all are, or until recently have been,
head