Note 8 — Physical Type and Relationships

All the tribes of northwestern Luzon belong to the same linguistic stock which, in turn, is closely related to the other Philippine languages. There are local differences sufficiently great to make it impossible for people to communicate when first brought together, but the vocabularies are sufficiently alike, and the morphology of the dialects is so similar that it is the task of only a short time for a person conversant with one idiom to acquire a speaking and understanding knowledge of any other in this region. It is important to note that these dialects belong to the Philippine group, and there seems to be very little evidence of Chinese influence8 either in structure or vocabulary.9