It is obvious that a scientific knowledge of facts, is of the greatest importance for anyone who cares to approach any problem in a serious way. Statistics which are up-to-date are therefore of primary importance. I had the privilege of reading the manuscript of _Quo Vadis America_, the forthcoming book of Mr. Polakov, where a most valuable statistical picture of facts in modern America is given and the astonishing conclusions which are to be drawn therefrom. I can only regret that in Europe we have not such a knowledge written down concerning European conditions. If more such books had been written and _read_ by the public, many crises and catastrophes would have been avoided. The outstanding contribution of Mr. Robert B. Wolf to engineering was made in his study of physiology, biology, psychology and philosophy as applied to engineering. “If anyone wishes to inquire into the forces which have led up to the individual development of mankind, he will find himself at once plunged into the realm of psychology and mental philosophy. I can heartily recommend such a course as immensely profitable and of practical value. “The five important facts, however, that have to do with the subject in hand are: “_1st._ That the human body is such a wonderful organization because it is the product of the forces of creation, acting through millions of years of evolution. “_2nd._ That its capacity for progress depends upon the maintenance of the unity resulting from this creative evolution and upon a conscious recognition of this unity. “_3d._ That this unity would not have been possible without the development of the nervous system. “_4th._ That the conscious intelligent progress made by mankind could not have reached its present level until in the process of evolution a mechanism had been built up in the nervous system itself capable of recording the various impressions which the senses are constantly receiving. “_5th._ That the recording of past events, with the power of consciously recalling them for the solution of problems immediately confronting it, is absolutely essential to its development. “Now, what I want to point out is that inasmuch as man’s progress depends upon the perfect co-ordination of his forces to produce unity of action, we have no right to expect an industrial organization to make progress which it must do as a unit without the establishment of a conscious co-ordinating mechanism similar to the nervous system in the human body.” _Individuality in Industry._ By Robert B. Wolf.