of Committee on Service and Information,
Fuels Section, A.S.M.E., and Robert B. Wolf, Vice-President of A.S.M.E. In
them I found, to the full, a very sympathetic understanding and my esteem
grew as I became more intimately acquainted with the character of their
work and their accomplishments. Both have done a most remarkable work in
their respective lines. It will not be an exaggeration to say that their
work, together with the work of the late H. L. Gantt and Charles P.
Steinmetz, may be considered as the first--to my knowledge--corner-stones of
the science and art of Human Engineering, and form the first few volumes
and writings for the New Library of the Manhood of Humanity. These books
and pamphlets are based on facts analysed scientifically, marking the
parting of the way of engineering thought from the past subjection to
speculative fetishes.

Of all the pure and applied sciences, engineering alone has the
distinction of being the first to have the _correct_ insight into the
human problem. The task of engineers was to convert knowledge--brain
work--"bound-up time"--into daily bread by means of conserving time and
effort. This concept is naught else but the working out of the imperfect
formulation of the time-binding principle. It was inevitable, therefore,
that some engineers had already beaten the path in the right direction.
How straight and how far this sense of dimensionality has led some of them
in their practical work may be seen from the work of Walter N. Polakov, in
his _Mastering Power Production_, Engineering Magazine, N. Y., 1921.

"It was not my intention to compile a text book on power
engineering; it was rather my care to avoid the treatment of any
technical subject which could be found elsewhere in engineering
literature; but I could not avoid trespassing in the adjoining
fields of psychology and economics, for without familiarity with
these sciences the mastery of power production is a futile
attempt.

"I do not hold that the principles upon which the method is laid
out are subject to choice or opinions, for they are based on
facts. Yet work of this character cannot be complete, or examples
may be illy chosen, for it deals with living and constantly
reshaping relations and applies to things in process of
development.

"If this work and its underlying idea will facilitate the solving
of some of the problems now in the course of rapid