Vaudeville has had many novelties, but broncho "busting" on the stage is one of the most novel of them all. This act is at the Orpheum theater this week. It is presented by Lucille Mulhall and "her ranch boys." The "ranch boys" are Charles Mulhall, Martin Van Berger, a Kansas City baritone, who does some good singing, Georgia Mulhall and Mildred Mulhall. Miss Lucille Mulhall rides her trick horse Governor,w hich she trained herself. She also does some clever roping. Five horses are used in the act. The real novelty is riding a bucking "bronc." Charles Mulhall does the riding. The stage is fenced in and the bronc is brought on. What follows for several minutes is exciting.