THE GEOLOGY OF LUZON, PI. 47 
railroad and the school have had a chance to work on these people 
and mix them up, the tribal characteristics will largely disappear. 
At the present time it seems that the following characteristics may 
be noted with reference to the different tribes: 
The Ilocano lives on the Coastal Plain and spends a great deal 
of his time at sea, as the Coastal Plain is too narrow to furnish all 
of the food necessary. He is, because of this life a nomadic indi- 
vidual and has therefore been able to penetrate farther into the 
other districts in Luzon. I expect to see this tribe, in time, domi- 
nate Luzon. 
The Igorot is a much stockier man than the Ilocano, and shows, 
in his build, the effect of his hill-climbing life. Due to the mountain 
barriers, he has been kept more isolated and has to spend more time 
getting his food, and therefore is more of a stay-at-home. Many 
of the Igorots will not leave their own communities, being afraid to 
go from one town to another. The government is dispelling this 
vague fear of the Igorot, and many barbarous customs, such as 
head-hunting, are fast becoming obsolete. It is believed that the 
physiography of the country has had a direct and very important 
effect upon the people. Traveling in that country is a serious 
matter, and they will not take the trail, unless they are very hungry 
or some other inducement is offered. 
The Negrito is very evidently a vanishing tribe. The govern- 
ment by its paternalism may for a time postpone the extinction of 
these people, but the arrest in their development seems to have 
been so complete that it is a question whether they can ever recover, 
or whether it would be of any particular value to the human race 
for them to recover. The writer has been among these people, and 
while he has seen some signs of an organized life, it is a hand-to- 
mouth existence, and they are often little better than animals. 
They are exceedingly shy and one may travel for days at a time 
through their country without seeing anyone. 
The Tagalogs are the most advanced in western civilization, of 
all the tribes of Luzon, and a glance at the map will show how they 
have clustered about the capital of the Archipelago. Physically 
not much can be said of them. They do not produce very much of 
their own food, being mainly engaged in the more sedentary pro- 
