ed for investigation upon the proper scale, with all the
available appliances and methods already worked out and at hand. Such
an institution would possess the right chemical laboratories for
the making of blood analyses, metabolism examinations, and tests of
endocrine functions. There would be X-ray machines and experts to
radiograph the pituitary, pineal and thymus glands when possible.
There would be psychologists to carry out intelligence tests,
determine emotional reactions, and group mental aberrations,
deficiencies and defectives. There would be statisticians, trained in
biometrics, to criticize and compare data obtained. There would be
anthropoligists to note and measure variations in angles and curves,
ratios and quotients of the external conformation of the body.
Internists would record the history and status of the organs and
viscera. There would be librarians to collect, abstract and collate
the vast, accumulating literature. In short, the mystery of
personality, the most marvelous, complex, and variable process in the
universe, would be attacked and at length penetrated systematically
and persistently, with the ideal of absolute control of its
composition as the goal in view.

The nature of the researches? They would be infinite in their variety
and significance. Their practical by-products, dropped in the pursuit
of knowledge by the scientist, as Atalanta's lover the golden apples
in his race, to assuage the scent of the hard-headed business man,
would be profitable enough for any country in peace or war, to pay
for itself ten times over and at compound interest. A volume could be
filled with suggestions for interesting and promising investigations.
But we may glance at some of the immediately useful aspects that might
exercise those concerned with the everyday life of men, women and
children.

THE ENDOCRINE EPOCHS OF LIFE

There is no more famous classifications of the epochs of life
that mark off the milestones of the individual's evolution than
Shakespeare's Seven Ages. So different is he at those different stages
of his development, so changed his body and mind that it has become a
part of popular physiology that we are entirely made over every seven
years, and that no cell in the organism lasts longer than that. The
tradition certainly does not apply to the brain and nervous system,
for the number of brain cells is fixed at birth, and cannot be
increased, only decreased, because they are too highl