process demand exact analysis if the greatest efficiency is to be reached. Everybody knows what an amount of attention the golf player has to give to every detail of his movement, and yet it would be easier to discover by haphazard methods the best way to handle the golf stick than to use the spade to the best effect. On the other hand, the better method is not at all necessarily the more difficult one. More effort is needed at the beginning to acquire an exactly adjusted scheme of movement, but as soon as the well-organized activity has become habitual, it will realize itself with less inner interference. For the educated it is no harder to speak correct grammar than to speak slang, and it is no more difficult to write orthographically than to indulge in chaotic spelling, just as in every field it is no harder to show good manners than to behave rudely. If the sciences of digging and chopping, of reaping and raking, of weeding and mowing, of spraying and feeding, are all postulates of the future, each can transform the chance methods into exact ones, and that means into truly efficient ones, only when every element has been brought under the scrutiny of the psychological laboratory. We must measure the time in hundredths of a second, must study the psychophysical conditions of every movement, where not trees are cut or hay raked, but where the tools move systems of levers which record graphically the exact amount and character of every partial effect. The one problem of the distribution of work and rest alone is of such tremendous importance for the agricultural work that a real scientific study of the details might lead to just as much saving as the introduction of new machinery. The farmhand, who would never think of wasting his money, wastes his energies by contracting big muscles, where a better economized system of movement would allow him to reach the same result through the contraction of smaller muscles, which involves much less energy and much less fatigue. The loss by wrong bending and wrong coördination of movement may be greater than by bad weather.