The Philippines: Pigafetta's Story of their Discovery by Magellan

From the Foreword:

You are now opening the door to a treasure house for the study of the Filipino people. It is more than a simple lesson in history; it provides for a complete ethnological study. Ethnology is a science with three main branches: (i) anthropology, which is the biological, physical study of man, (ii) ethnography, which is the study of its culture, and iIi) linguistics, the study of language. Pigafetta wrote this reference book for a comparative ethnographic and linguistic study of the ethnic group living today in the Philippines.