The very great and growing popularity of gymnastic exercise is due to several facts. First of all, there is a general awakening to the need for organized exercise at most schools and colleges and within the ranks of many social organizations. Aside from walking, gymnastic exercises, as they have been developed by the Swedes and the Germans, are possibly the most obvious form of beneficial physical exercise. Then this form of physical training has the very decided advantage of being susceptible to the widest kind of application. It may be graded so as to be beneficial to various groups of individuals of varying physical development. It may be given in the most scientific quantities--more so than any other form of exercise save walking. It may be used as a drilling force to instill discipline--against fire, for instance--in great groups of persons, for ability and sufficient knowledge in handling one’s body quickly and efficiently in a crowd under abnormal conditions is quite an important and necessary accomplishment. In fact, everyone, no matter at what age, could do well by her or his body to indulge in some form of calisthenics or gymnastic exercise. There are two main divisions of gymnastics--floor work and apparatus work. The floor work consists mainly of tactics, calisthenics, drills with hand apparatus, such as wands, dumb bells, Indian clubs, etc., dancing and posturing exercises. The tactics consist mainly of marching by ones, twos, threes, fours, etc., of flank marching, and of circle marching. Form in this counts for a great deal together with quick execution of commands and memory of the proper method by which the figure is to be executed. Perfect form in marching consists of the head erect, the eyes straight ahead, the shoulders back, the arms down straight at the sides, the palms of the hands turned toward the body, the fingers close together; the toes should be pointed and reach for the floor, so that the muscles of the leg and the thigh can feel the effort made. Also the marchers should observe carefully the space between each one and the straightness or regularity of the line. Watch the person ahead of you and beside you. This keeps the marching from being ragged.