"The Pagan Tribes of Borneo: A Description of Their Physical, Moral and Intellectual Condition, with Some Reasoning of Their Ethnic Relations" is a well-known book by Charles Hawes and William MacDougall. This study provides a detailed description and analysis of the life and customs of the tribes inhabiting Borneo. The authors not only pay attention to the physical features of these tribes, but also examine their moral and intellectual development. In addition, the book provides an in-depth overview of the ethnic relations between the various tribes of Borneo. This work is an important source for the study of the culture and history of this region, and also contributes to a better understanding of the amazing world and people of Borneo.