point of the knife upon the surface of the bamboo, the artist working from memory of the desired pattern and adapting it to the proportions of the surface to be covered. The Iban works more freely than others, working out the pattern and modifying it to meet the exigencies of his material, section by section, as he goes along. Others plan out the design for the whole surface before working out any part in detail.
It is probable that in no case does a man sit down and produce a new pattern ; but the freer mode of working of the Iban leads him on to greater modifications of the traditional designs; and it is probably partly for this reason that a much larger variety of designs is applied in this way by them than by the other tribes, among whom they are very limited in number. But the greater variety of designs worked by the Ibans is due also to the readiness with which he copies and adopts as his own the patterns used by other tribes. The Kayans and Kenyahs use almost exclusively varieties of the dog pattern and of the hook and circle (see Fig. 47).
The design outlined by the point of the knife