Those are not cracks, they are delaminations, failures of the glue joints. Use some hypodermic needles with a good wood glue, get some in the fissures, clamp for a day. Then as already mentioned, keep oiled/waxed.
If you don't have clamps, either figure something out or throw it on the camp fire.
Well, that last was not helpful, get some 15-30 minute epoxy glue and a thin putty knife, mix the epoxy and spend some time working it into the exposed joint with the knife. Start on one side, work the epoxy in, then use masking tape to seal it in, turn over and work in more epoxy.
Never had to do that, but that is how I would approach it. Good luck.
Keep it oiled/waxed.
If you don't have clamps, either figure something out or throw it on the camp fire.
Well, that last was not helpful, get some 15-30 minute epoxy glue and a thin putty knife, mix the epoxy and spend some time working it into the exposed joint with the knife. Start on one side, work the epoxy in, then use masking tape to seal it in, turn over and work in more epoxy.
Never had to do that, but that is how I would approach it. Good luck.
Keep it oiled/waxed.