Cut tree-trunks into logs. The logs are then split in half so that there is a flat side for the inside of the wall and a round side for the outside. The logs then have big "notches' or holes cut into the ends, so that when they are pilewithout any nails. These log cabins can be seen in Canada, in

Abstract

cut tree-trunks into logs. The logs are then split in half so that there is a flat side for the inside of the wall and a round side for the outside. The logs then have big "notches' or holes cut into the ends, so that when they are pilewithout any nails. These log cabins can be seen in Canada, in