The dowel bit or the bolt for that matter usually have allignment problems .
so
make another horizontal cut with a bandsaw perhaps a couple of inches above
or below the fracture. Prior to making the cut make a register mark so the
two pieces can be correctly realligned .

Now take the two broken ends and dry fit them together to form a perfect
joint now drill a dowel hole all the way through the fracture . Now
disassemble that arrangement and now match up the two that were the result
of the bandsaw cut using the register mark made earlier [also a dry fit]
backdrill a dowel hole through this joint using the hole previously drilled
through the short section as a guide .

Insert glue and insert dowel into all three sections . If done right the
repair should be invisible, however the leg will be shorted by the
thickbness of the bandsaw cut ............mjh

--
http://members.tripod.com/mikehide2
"Major Canuk" wrote in message
...
I have a chair that the wooden leg broke in the middle. clean break in
half.
It is a horizontal break, not hight way. What is the best way to fix this.
Drill a hole in the two parts and glue in a hardwood dowel? any other
ideas?
Is there a web site that shows how to do repairs to furniture? If so,
please
post it. thanks in advance.