If the bridge has not bowed, it might be possible to glue it together again, but it is doubtful that the repair will last. If you wish to try, place the glued bridge on the belly so that the side nearest the tailpiece is vertical to the belly, with that side of the feet in line with the inner nicks in the soundholes.
The correct size of a new bridge has to be chosen to match the instrument, and its feet must be shaped to fit the violin's belly at the correct point. The top must be cut down to match the fingerboard, and the thickness must be adjusted. All this needs the skill of a violin repairer. An unskilled attempt is not likely to be satisfactory. Seek out a good music shop and ask for the name of a repairer.
Bill Kreis, December 2004
