onsciousness promises to be
infinite.

Man's interest having in these latter days become largely centered on
value-judgments and estimates of worth, an exposition affords perhaps
the most general application of the principle of relativity, bringing it
home to the collective mind in an intimately human way as nothing else
could: - With nation vying with nation and individual with individual in
all of the arts and crafts of human industry, absolute standards must
needs vanish, and with their going we may be able to set up such a
distribution of values as will give new direction to our efforts.
However that may be, the industrial competition to which, in the last
analysis, the Exposition owes its inception, is pushing many aside from
the beaten highways into hitherto unexplored regions of thought and
endeavor, and who is to say that we may not in consequence find a
direction quite at right angles to all of our wonted ways of thinking.
Certainly there could be no more fitting occasion for the launching of a
new thought-form than a great international exposition.

The Fourth-Dimensional
Aspects of the Panama-Pacific
International Exposition

And I know not if, save in this, such gift be allowed to man,
That out of three sounds he frame, not a fourth sound, but a star.
Consider it well: each tone of our scale in itself is naught:
It is everywhere in the world - loud, soft, and all is said:
Give it to me to use! I mix it with two in my thought:
And there! Ye have heard and seen: consider and bow the head!

- Browning.

The Panama-Pacific International Exposition is best seen in its
fourth-dimensional aspect when approached through the Gateway of Memory.
This is what one might expect, for that entrance alone has the requisite
geometrical structure. You will recall having heard, I am sure, how in
the fourth dimension a person may go in and out of a locked room at his
pleasure with bolts and bars untouched. Broad and open as is this Gate
of Memory, when you pass its portals the wall closes behind you; there
is no visible opening to mark the spot of your entry. A feeling of
detachment comes over you. This is augmented by the burst of light and
color that flashes across the field of your vision, and for the first
time you understand the purport of those 'banners yellow, glorious,
golden' which 'do float and flow.' They seem to bear you on breezes of
their own creating to the freedom of outer spaces. What you