Physical 3725 Physical rangement of the exercises chosen are deter- mined by the sex, age, and physical condition of the individuals to be trained. The result which should be secured by a rational system of physical training is to secure a complete education of the body which can be attained only by careful and continuous training from early childhood to maturity. During the first six years of life, the child's need for exercise is fully satisfied by free play. During the first four years of the elementary school, the physical training of the child con- sists mainly of free play supplemented by in- struction in simple gymnastic games and some of the fundamental exercises. The period of adolescence, from about 10 to 18 years, is by far the most important for the physical train- ing of the individual. The physical training of the individual should be completed when he reaches 18 to 20 years. This does not mean that physical exercise is no longer necessary, for physical activity is essential to health in every period of life. After 40 or 45, the heart and blood vessels become m'ore susceptible to strain, and the muscles and joints lose in sup- pleness ; in consequence it becomes necessary to abandon exercises of strength, speed, and endurance, and to substitute some of the light- er forms of muscular activity. Three systems of physical training, developed in Europe dur- ing the iQth century, constitute the basis of modern physical training; they are the British j the Swedish; and the German. The British system is essentially a system of plays and games which has developed grad- ually as an expression of the play instinct in the English people. This system is valuable because it gives expression to the normal hu- man instincts for physical activity and com- petition, but it lacks a scientific basis and is incomplete as a system of physical training. The Swedish system was developed at the Royal Central Institute of Gymnastics, found- ed in Stockholm in 1813 by Peter Henry Ling. The characteristics of the Swedish system are as follows: Positions are distinguished from movements; every movement is selected for a definite purpose; movements which tend to constrict the chest or require the breath to be held are rejected; definite progression in the character of the movements is made from day to day; all movements are executed to the word of command, as in military drill. The weakness of the Swedish system is due to the too great emphasis given to the neural factor in exercise, the monotony for the rigid May's order' or lesson, am' particularly to the omis- sion of all competitive and recreative exercises. The German system of physical training is one of the oldest and most extensively practic- ed today. Friedrich Ludwig Jahn is given cred- it of founding this system. With the coopera- tion of his friends and pupils, Jahn developed a scheme of physical training which included such exercises as running, jumping, vaulting, and various exercises on newly invented gym- nastic apparatus. He made use of every form of exercise which proved interesting. New forms of exercise were added from time to time until the system included games, free movements with and without hand apparatus, heavy gymnastics, running, jumping, climbing, throwing weights, wrestling, and fencing. Physical training has been developed fat more extensively in the United States than in Europe. In the sixties, the colleges of Harvard Yale and Amherst built gymnasia; rowing, baseball, and athletics were introduced in a number of colleges; Dr. Dio Lewis inaugurated a movement in favor of light gymnastics; and the Germans organized gymnastic societies and founded a school for training teachers. The new movement developed slowly during the first few years, but since that time the de- velopment has been very rapid. Abundant re- sources and freedom of thought and action have made possible the development of a national system of physical training which is rapidly taking its place as an integral part of American education. That the leadership of the United States in physical training and ath- letics is recognized by foreign nations is shown by the large number of commissions sent by foreign governments to study American insti- tutions and methods of physical training. One of the direct results of the popular in- terest in national preparedness aroused in the United States by the great European War of 1914 was the passage by the legislature of the State of New York of 'An Act to amend the education law, in relation to courses of instruction in physical training and discipline in the schools of the State.' The chief pro- visions of this act are as follows: After Sept. i, 1916, all pupils above the age of 8 years in all elementary and secondary schools shall re- ceive as part of the prescribed courses of in- struction therein such physical training as the Regents, after conference with the Military Training Commission, may determine, during periods which shall average at least 20 minutes in each schqpl day. Pupils above such age at-