Joining Burl Base to Burl Top

Got me, but welcome to LJ!! Some one will be along with a good idea.

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence Wake Up America!! Please read; http://www.commondreams.org/view/2009/01/26-0

Without really thinking too hard about it a couple of one inch dowel posts on top of the base for the top to sit on, one inch holes drill halfway through the top.

-- Carpe Diem

Depending on the look you are going for. Me I would use some old iron or steel like re-bar, railroad spikes, old barn hinges or horseshoes. Find your balance points tack weld the metal and make a mortise in the wood to epoxy it all together. You can color the epoxy or embed crushed stone. Also apply that scheme to any weak spots or holes in the wood. Finish with a bar-top finish.imo;) uu deer antlers for dowels? maybe

-- Superdav "No matter where you go - there you are." http://chiselandforge.com

I think a few dowels are the best way to do it nice cleen look and plenty of strengh.
The easiest way is to cut some plywood smaller than your table top. Place it on top or the base and attach with screws. Next put your top on the plywood and from underneeth screw the plywood to the top. If the top and bottom are not level the plywood can be shimed before attaching screws.
Before my house burned down I had several tables like this they were done with dowels but not glued. this makes it easy to move the tables. Mine were pretty big and heavy.
I had one made of redwood We cut 5 slabs on the beach one day and 4 of the homes with the tables burned down I dont know who got the fifth table and what ever happened to it. I had sold mine once for $500 and a few years later when they remodeled the guy (a friend) gave the table back to me.

Dowels do seem to be what comes to mind first. I would set a piece of paper across the tops of the base points, then put a mark on the paper at each center; then find the balance point of the top and put the paper (upside down) along the balance point with the center of the paper at the center of the balance, then mark and drill for your dowels. You could do 1 large dowel per base point or 3 smaller ones in a triangle.

-- Power tools put us ahead of the monkeys