complementary lines of activity, as in Scientific Management itself,
the need for psychological study is evident.[10] Through it, only,
can scientific progress come. Here is emphasized again the
importance of measurement. Through accurate measurement of the mind
and the body only can individuality be recognized, conserved and
developed as it should be.

PREPAREDNESS OF EXPERIMENTAL PSYCHOLOGY.--Experimental
psychology has instruments of precision with which to measure and
test the minds and bodies brought to it, and its leading exponents
are so broadening the scope of its activities that it is ready and
glad to plan for investigations.

METHOD OF SELECTION UNDER ULTIMATE MANAGEMENT.--Under Ultimate
Management, the minds of the workers,--and of the managers
too,--will have been studied, and the results recorded from earliest
childhood. This record, made by trained investigators, will enable
vocational guidance directors to tell the child what he is fitted to
be, and thus to help the schools and colleges to know how best to
train him, that is to say, to provide what he will need to know to
do his life work, and also those cultural studies that his
vocational work may lack, and that may be required to build out his
best development as an individual.

It is not always recognized that even the student who can afford
to postpone his technical training until he has completed a general
culture course, requires that his culture course be carefully
planned. Not only must he choose those general courses that will
serve as a foundation for his special study, and that will broaden
and enrich his study, but also he must be provided with a