gs into play nearly
every muscle of the body, and thus serves to develop the power of
endurance, as well as strength and capacity for rapid movement.

Jumping may well be left to boys and young men under twenty, but
skipping with a rope, allied to jumping, is an admirable and beneficial
form of exercise. It brings into action many muscles without putting undue
strain upon any particular group.

91. Skating, Swimming, and Rowing. Skating is a delightful and
invigorating exercise. It calls into play a great variety of muscles, and
is admirably adapted for almost all ages. It strengthens the ankles and
helps give an easy and graceful carriage to the body. Skating is
especially valuable, as it can be enjoyed when other out-door exercises
are not convenient.

Every child above ten years of age should be taught to swim. The art,
once mastered, is never forgotten. It calls into use a wide combination of
muscles. This accomplishment, so easily learned, should be a part of our
education, as well as baseball or bicycling, as it may chance to any one
to save his own life or that of a companion.

In many respects rowing is one of the most perfect exercises at our
command. It expands the chest, strengthens the body, and gives tone to the
muscles of the abdomen. It is very suitable for girls and women, as no
other exercise is so well adapted to remedy the muscular defects so marked
in their sex. Even elderly persons can row day after day without
difficulty. The degree of muscular effort required, can be regulated so
that those with weak hearts and weak lungs can adjust themselves to the
exercise.

92. Bicycling as an Exercise. The bicycle as a means of taking
exercise has come into popular use with remarkable rapidity. Sharp
competition bids fair to make the wheel more popular and less expensive
than ever. Its phenomenal use by persons of all ages and in all stations
of life, is proof of the enthusiasm with which this athletic exercise is
employed by women as well as by men.

Mechanical skill has removed most of the risks to health and person which
once existed. A good machine, used by its owner with judgment, is the most
convenient, the safest, and the least expensive means of traveling for
pleasure or exercise. It is doing more than any other form of exercise to
improve the bodily condition of thousands whose occupations confine them
all day to sedentary work. Dependent upon no one but himself, the cyclist
has his means of e