Stránka:roll 1910.djvu/140

124 BOY SCOUTS OF AMERICA half a roll drops it into place. The log should be one to three inches above the one under it, and should not touch except at the ends. Repeat the process now with the other sides, then the two ends, etc., always keeping the line of the corner plumb. As the walls rise, it will be found necessary to skid the larger logs ; that is, roll them up on two long logs, or skids, leaning against the wall. (Fig. 2.) When the logs are in place to the height of four and a half feet from the ground, it is time to decide where the door and window are to be, and at that place, while the next long log is lying on top, bottom up, cut out a piece four feet long and four inches deep. Roll this into place. (Fig. 3.) One more log above this, or certainly two, will make your shanty high enough for boys. Put on final end logs, then two others across the shanty. (Fig. 4.) Roll up the biggest, strongest log of all for the ridge (sometimes two are used side by side) ; it should lie along the middle of the four cross-pieces shown in Fig. 4. The two cross-logs B and C, and the ridge-log should be very strong, as the roof is heavy. Now we are ready to cut the doorway and window. First, drive in blocks of wood between each of the logs, all the way down from A to the ground, and from B down to D, and C to E. (Fig. 5.) Saw down now from A halfway through the ground-log F. Then from B down to halfway through the log D; now continue from G, cutting down to half through the ground-log. Use the axe to split out the upper half of the ground-log, between the saw-cuts and also the upper half of the log D. Hew a flat piece of soft wood, five or six inches wide, about two inches thick, and as long as the height of this doorway. Set it up against the ends of the logs A to F. Bore an auger-hole through it into the end of each log (these holes must not be in line lest they split the jamb), including the top and bottom ones, and drive into each a pin of oak. This holds all safely. Do the same on the other side, H to E, and put a small one down B, D, which is the side of the window. Now we are ready to finish the roof. Use the axe to bevel off the corners of the four cross-logs, A and B. (Fig. 6.) Then get a lot of strong poles, about five feet long, and lay them close