MITCHELL’S BOUT TO-MORROW.The Amherst News says:—Jack Dorrlngton, the Jogglns scrapper who will step into the ring with Hoy Mitchell on Friday evening at Joggins Is reported to be a powerful puncher, and that he haM a much better change against the Haligonian than did the veteran Edgar Martin, who was put away by Mitchell, a few weeks ago in the tenth round of a fight. Dorring-ton uses a right upper-cut with telling effect.