Materials and tools:
If the tree has recently fallen and still green - saw cut should be left to dry in the sun. If the tree is sufficiently dry, the well-craft it with sandpaper. You can remove the bark or leave it. But if you decide to leave, make sure that there is no bug, as well as take care of that there is no tar.
Step 2. Handle the cut surface with a natural, environmentally-friendly oil or the wax.
Step 3. Apply glue on a clean ground surface saw cut, leave on for 5-10 minutes (or follow the instructions of the glue), then press the bonding surfaces well and place them in a vise. You can simply press it well with heavy books or dumbbells.
Step 4. Enjoy!