ABSTRACT
F. B. Gilbreth has claimed that the stereochrono-cyclegraph shows that fast motions follow a different path from slow motions. Motion study has therefore the additional advantage of increasing the transferability of skill—an advantage which may if abused bring overwhelmingly greater disadvantages in its train. The experts who make the motion studies and the records of their investigations will have to be put under the joint control of the employers and the workers. There are, however, a series of considerations with regard to the adaptation of material conditions to the needs of the workers which do involve psychological and physiological factors of great importance. The strength of the workers depends entirely on their monopoly of the skill in case of craft unions, the labour power in case of General Workers’ Unions, necessary to operate the machines and use the materials of the employers.
