Various, Harper's Round Table, November 17…
“ Nearly every muscle of the body is brought into play. The triceps, or pushing muscles on the back of the arm, the shoulder and back muscles, are the ones especially developed in boxing. The bare back of a boxer is a perfect mass of muscle. Great knots and coils appear between and across the shoulders with every movement, while the ridges stand out clear down to the base of the spine. Let a boy practise a single left-hand lead in front of a mirror in gymnastic costume, and note how [Pg 64] many muscles are used. ”
