columns of iron-wood. Holes about four feet in depth are dug for the reception of the butt ends of these. They are disposed in the manner indicated in the diagrams (Figs. 37, 38, 39), so that a single row supports the front of the house, another the back, and a double row the middle.1 The intervals between the columns of each row are about twenty feet, or rather more. Each pile is erected by raising the one end until the other slips into the hole. Rattans
are tied round it a little above its middle and passed over a tall tripod of stout poles. A number of men haul on these while others shove up the top end with their shoulders. The pile is thus suspended with its butt end resting so lightly on the ground that it can easily be guided into the hole prepared for its reception. Smaller accessory piles, to serve as additional supports, are put under the main cross beams of the floor when these have
I 1 The pair of centre columns and the main columns supporting the roof ack and front should have been drawn thicker than the accessory columns supporting the floor, and the width of the roof-plates is much greater than is Ir*dicated in the diagrams.