NATIVES OF BORNEO 307 



divisible into many different tribes, the generic name of 

 Kalamantan has been applied, to distinguish them from 

 the Indonesians in other islands of the Archipelago. 

 Pulo Kalamantan is the name applied by Malays to the 

 island of Borneo, and is possibly derived from the 

 word lemanta (raw sago), sago having been one of the 

 principal exports of Borneo for many generations. 

 When the country was thinly covered with Kalamantans 

 there followed successive immigrations of Kenyahs, a 

 race characterized in the main by a moderate brachy- 

 cephaly; these mixed with their Kalamantan prede- 

 cessors, so that at the present day there are found 

 tribes difficult to place in either category. At some 

 period, the length of which is quite uncertain, there 

 followed up the principal rivers of eastern and south- 

 eastern Borneo the Kayans, a powerful race, that drove 

 before them the weaker Kalamantan and Kenyah tribes ; 

 some of the Kenyah tribes amalgamated more or less 

 with the Kayans, and at the present day are superficially 

 very like them. The wave of immigration still continuing 

 to flow, the Kayans, and those Kenyahs who had not 

 amalgamated with the Kalamantans, swept over the great 

 watershed dividing Sarawak from Dutch Borneo, and 

 occupied the Baram and Rejang Rivers in Sarawak. 

 Last of all came the Sea-Dayak, a brachycephalic 

 Malayan ; advancing up the Kapuas from the south- 

 west, he drove all before him and overflowed into the 

 Batang Lupar and adjacent rivers in Sarawak, where to 

 this day he remains in great force. In recent years the 

 Sea-Dayak has migrated in numbers to the Baram and 

 Rejang Rivers, and advancing up these he is slowly 

 but surely driving before him the Kenyahs and Kayans 

 who in ancient times moved down these rivers from 



