6 SURVEYING AND EXPLORING IN SIAM.
the timber, clearing the hillsides for the cultivation of rice (a different grain from that sown 011 the inundated plain), tobacco, cotton, Indian corn, and vegetables. After two or three years the soil is considered exhausted ; then the village is bodily removed, and
TEMPLE IN CHIENG MAI.
clearings started in another direction, care being taken to avoid encroaching on the grounds of neighbouring tribes. I11 this way the tribe return in a few years to their old clearings. The Karens are hardy foresters, and the whole of the teak in the Me Tun is worked by them.