Log-Rolling.

Now is the time to invite all your friends to a grand old-time log-rolling; ask the girls to come and cook the coffee and make the sandwiches.

The two end-logs may first be rolled down from the skids, notched and fitted in place across the ends of sill-logs (Fig. 93), and then the next two side-logs, and so on, alternating until the walls are built; but you must remember to allow for the doors, windows, and fireplace openings. When the walls are so high that it is a difficult task to lift the logs in position, put up a couple of skids and roll the logs up the incline, which is better than wasting your strength in trying to lift such burdens. When the walls have reached the height of the top of the lowest opening, nail some