13 Interregional studies as integrating the historical disciplines 297
appeal to the fact that affording perspective and showing interrelation-
ships are not necessarily the exclusive functions of a world history. A
perfectly respectable function, if function limited in philosophic scope, is
to bring together in one place a certain minimum of information about all
the various fields of history in which the reader may be interested. Such
a work is like a world atlas - in contrast to a world map, it can legiti-
mately show any given area in as much detail as required, provided that
all areas are covered in some degree or other. Such a work may be a one-
volume school text, where it is desired to be done with "history" in only
two courses, one on the national history and one on all the rest. In a
textbook for the second course it is presumably necessary to make up for
the lack of a course in regional history by giving special emphasis to
those parts of the world with which the national history has been spe-
cially connected. Or such a work may be a many-volume collection de-
signed for the customer who wants to have the world on one
shelf.
In
this case the salesman will have an easier time - and rightly so - if the
fields about which the customer has the most prior knowledge, and will
have the most curiosity about details in, are covered with special thor-
oughness. These catch-all works may of necessity, then, be badly out of
porportion from the point of view of fulfilling the first function, that of
affording overall orientation.
The disproportion in such works has often been far more extreme than
necessary; but some disproportion is bound to remain. Often in such
works there is no internal organizing principle to make up for the effects
of a catch-all type of selection; but presumably, if the history of the
Oikoumenic configuration could serve as a guide in arranging the
works, the worst results of their disproportion could be avoided. The
reader could at least be made aware of the proportions of the whole as a
result of the very plan of the work, as well as through repeated refer-
ences to the wider background against which local developments are
taking place. Subtitles, if not the main headings themselves, could re-
mind him of the point he had reached in the overall story. Then subsec-
tions could be multiplied almost indefinitely for favored areas and times,
yet the reader would at least realize that these areas were being favored,
and that the scale of their treatment was enlarged. Reference to Oikou-
menic history in such compilations, then, has potentially a peculiarly
significant role to play, in spite of their apparent resistance to its outlook.
A more scholarly function for a many-volume world-history is to pro-
vide an up-to-date compendium of the current results of research in all
historical fields. Such a history is likewise of the "world atlas" type, and
its organizing principles will not be basically different, usually, from