He finds near kinsmen for them in the Ainus of Japan, the Khmers and Chams of Cambodia and among some of the Micronesian islanders who, in spite of much crossing, still exhibit marked Caucasic types.
Keane, who suggests that they are a branch of the Caucasic division of mankind who possibly migrated in the Neolithic period from the Asiatic mainland.
The half-castes sprung from alliances with the wild tribes of Caucasic stock present every variety between that type and the Mongolian.
He regards the Australians as representing the lowest and most primitive examples of this primitive Caucasic type, and he urges that they must have arrived in Australia at a time when their ancestors had no pottery, knew no agriculture, domesticated no animals, had no houses and used no bows and arrows.
At a far later date, probably almost within historic times, the true Malay race, a combination of Mongol and Caucasic elements, came into existence and overran the archipelago, in time becoming the dominant race.
The view which has received most general acceptance is that they represent a branch of the Caucasic division of mankind who migrated at a remote period possibly in Neolithic times from the Asiatic mainland travelling by way of the Malay Archipelago and gradually colonizing the eastern Pacific. The Polynesians, who, as represented by such groups as the Samoans and Marquesas islanders, are the physical equal of Europeans, are of a light brown colour, tall, well-proportioned, with regular and often beautiful features.
They were followed by an immigration of Mongol-Caucasic peoples with a preponderance of Caucasic blood-the Indonesians of some, the pre-Malays of other writers-who are to-day represented in the archipelago by such peoples as the Dyaks of Borneo and the Battas of Sumatra.